28688520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:93

約数の個数: 256

約数和(自身を含む): 108864000

約数和(自身を除く): 80175480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 41, 42, 49, 51, 56, 60, 68, 70, 82, 84, 85, 98, 102, 105, 119, 120, 123, 136, 140, 147, 164, 168, 170, 196, 204, 205, 210, 238, 245, 246, 255, 280, 287, 294, 328, 340, 343, 357, 392, 408, 410, 420, 476, 490, 492, 510, 574, 588, 595, 615, 680, 686, 697, 714, 735, 820, 833, 840, 861, 952, 980, 984, 1020, 1029, 1148, 1176, 1190, 1230, 1372, 1394, 1428, 1435, 1470, 1640, 1666, 1715, 1722, 1785, 1960, 2009, 2040, 2058, 2091, 2296, 2380, 2460, 2499, 2744, 2788, 2856, 2870, 2940, 3332, 3430, 3444, 3485, 3570, 4018, 4116, 4165, 4182, 4305, 4760, 4879, 4920, 4998, 5145, 5576, 5740, 5831, 5880, 6027, 6664, 6860, 6888, 6970, 7140, 8036, 8232, 8330, 8364, 8610, 9758, 9996, 10045, 10290, 10455, 11480, 11662, 12054, 12495, 13720, 13940, 14063, 14280, 14637, 16072, 16660, 16728, 17220, 17493, 19516, 19992, 20090, 20580, 20910, 23324, 24108, 24395, 24990, 27880, 28126, 29155, 29274, 30135, 33320, 34153, 34440, 34986, 39032, 40180, 41160, 41820, 42189, 46648, 48216, 48790, 49980, 56252, 58310, 58548, 60270, 68306, 69972, 70315, 73185, 80360, 83640, 84378, 87465, 97580, 99960, 102459, 112504, 116620, 117096, 120540, 136612, 139944, 140630, 146370, 168756, 170765, 174930, 195160, 204918, 210945, 233240, 239071, 241080, 273224, 281260, 292740, 337512, 341530, 349860, 409836, 421890, 478142, 512295, 562520, 585480, 683060, 699720, 717213, 819672, 843780, 956284, 1024590, 1195355, 1366120, 1434426, 1687560, 1912568, 2049180, 2390710, 2868852, 3586065, 4098360, 4781420, 5737704, 7172130, 9562840, 14344260, 28688520]

約数ペア:

[(1, 28688520), (2, 14344260), (3, 9562840), (4, 7172130), (5, 5737704), (6, 4781420), (7, 4098360), (8, 3586065), (10, 2868852), (12, 2390710), (14, 2049180), (15, 1912568), (17, 1687560), (20, 1434426), (21, 1366120), (24, 1195355), (28, 1024590), (30, 956284), (34, 843780), (35, 819672), (40, 717213), (41, 699720), (42, 683060), (49, 585480), (51, 562520), (56, 512295), (60, 478142), (68, 421890), (70, 409836), (82, 349860), (84, 341530), (85, 337512), (98, 292740), (102, 281260), (105, 273224), (119, 241080), (120, 239071), (123, 233240), (136, 210945), (140, 204918), (147, 195160), (164, 174930), (168, 170765), (170, 168756), (196, 146370), (204, 140630), (205, 139944), (210, 136612), (238, 120540), (245, 117096), (246, 116620), (255, 112504), (280, 102459), (287, 99960), (294, 97580), (328, 87465), (340, 84378), (343, 83640), (357, 80360), (392, 73185), (408, 70315), (410, 69972), (420, 68306), (476, 60270), (490, 58548), (492, 58310), (510, 56252), (574, 49980), (588, 48790), (595, 48216), (615, 46648), (680, 42189), (686, 41820), (697, 41160), (714, 40180), (735, 39032), (820, 34986), (833, 34440), (840, 34153), (861, 33320), (952, 30135), (980, 29274), (984, 29155), (1020, 28126), (1029, 27880), (1148, 24990), (1176, 24395), (1190, 24108), (1230, 23324), (1372, 20910), (1394, 20580), (1428, 20090), (1435, 19992), (1470, 19516), (1640, 17493), (1666, 17220), (1715, 16728), (1722, 16660), (1785, 16072), (1960, 14637), (2009, 14280), (2040, 14063), (2058, 13940), (2091, 13720), (2296, 12495), (2380, 12054), (2460, 11662), (2499, 11480), (2744, 10455), (2788, 10290), (2856, 10045), (2870, 9996), (2940, 9758), (3332, 8610), (3430, 8364), (3444, 8330), (3485, 8232), (3570, 8036), (4018, 7140), (4116, 6970), (4165, 6888), (4182, 6860), (4305, 6664), (4760, 6027), (4879, 5880), (4920, 5831), (4998, 5740), (5145, 5576)]