28447440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 106868160

約数和(自身を除く): 78420720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 48, 49, 56, 59, 60, 70, 80, 82, 84, 98, 105, 112, 118, 120, 123, 140, 147, 164, 168, 177, 196, 205, 210, 236, 240, 245, 246, 280, 287, 294, 295, 328, 336, 354, 392, 410, 413, 420, 472, 490, 492, 560, 574, 588, 590, 615, 656, 708, 735, 784, 820, 826, 840, 861, 885, 944, 980, 984, 1148, 1176, 1180, 1230, 1239, 1416, 1435, 1470, 1640, 1652, 1680, 1722, 1770, 1960, 1968, 2009, 2065, 2296, 2352, 2360, 2419, 2460, 2478, 2832, 2870, 2891, 2940, 3280, 3304, 3444, 3540, 3920, 4018, 4130, 4305, 4592, 4720, 4838, 4920, 4956, 5740, 5782, 5880, 6027, 6195, 6608, 6888, 7080, 7257, 8036, 8260, 8610, 8673, 9676, 9840, 9912, 10045, 11480, 11564, 11760, 12054, 12095, 12390, 13776, 14160, 14455, 14514, 16072, 16520, 16933, 17220, 17346, 19352, 19824, 20090, 22960, 23128, 24108, 24190, 24780, 28910, 29028, 30135, 32144, 33040, 33866, 34440, 34692, 36285, 38704, 40180, 43365, 46256, 48216, 48380, 49560, 50799, 57820, 58056, 60270, 67732, 68880, 69384, 72570, 80360, 84665, 86730, 96432, 96760, 99120, 101598, 115640, 116112, 118531, 120540, 135464, 138768, 145140, 160720, 169330, 173460, 193520, 203196, 231280, 237062, 241080, 253995, 270928, 290280, 338660, 346920, 355593, 406392, 474124, 482160, 507990, 580560, 592655, 677320, 693840, 711186, 812784, 948248, 1015980, 1185310, 1354640, 1422372, 1777965, 1896496, 2031960, 2370620, 2844744, 3555930, 4063920, 4741240, 5689488, 7111860, 9482480, 14223720, 28447440]

約数ペア:

[(1, 28447440), (2, 14223720), (3, 9482480), (4, 7111860), (5, 5689488), (6, 4741240), (7, 4063920), (8, 3555930), (10, 2844744), (12, 2370620), (14, 2031960), (15, 1896496), (16, 1777965), (20, 1422372), (21, 1354640), (24, 1185310), (28, 1015980), (30, 948248), (35, 812784), (40, 711186), (41, 693840), (42, 677320), (48, 592655), (49, 580560), (56, 507990), (59, 482160), (60, 474124), (70, 406392), (80, 355593), (82, 346920), (84, 338660), (98, 290280), (105, 270928), (112, 253995), (118, 241080), (120, 237062), (123, 231280), (140, 203196), (147, 193520), (164, 173460), (168, 169330), (177, 160720), (196, 145140), (205, 138768), (210, 135464), (236, 120540), (240, 118531), (245, 116112), (246, 115640), (280, 101598), (287, 99120), (294, 96760), (295, 96432), (328, 86730), (336, 84665), (354, 80360), (392, 72570), (410, 69384), (413, 68880), (420, 67732), (472, 60270), (490, 58056), (492, 57820), (560, 50799), (574, 49560), (588, 48380), (590, 48216), (615, 46256), (656, 43365), (708, 40180), (735, 38704), (784, 36285), (820, 34692), (826, 34440), (840, 33866), (861, 33040), (885, 32144), (944, 30135), (980, 29028), (984, 28910), (1148, 24780), (1176, 24190), (1180, 24108), (1230, 23128), (1239, 22960), (1416, 20090), (1435, 19824), (1470, 19352), (1640, 17346), (1652, 17220), (1680, 16933), (1722, 16520), (1770, 16072), (1960, 14514), (1968, 14455), (2009, 14160), (2065, 13776), (2296, 12390), (2352, 12095), (2360, 12054), (2419, 11760), (2460, 11564), (2478, 11480), (2832, 10045), (2870, 9912), (2891, 9840), (2940, 9676), (3280, 8673), (3304, 8610), (3444, 8260), (3540, 8036), (3920, 7257), (4018, 7080), (4130, 6888), (4305, 6608), (4592, 6195), (4720, 6027), (4838, 5880), (4920, 5782), (4956, 5740)]