18215820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 192

約数和(自身を含む): 66662400

約数和(自身を除く): 48446580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 61, 63, 70, 79, 84, 90, 105, 108, 122, 126, 135, 140, 158, 180, 183, 189, 210, 237, 244, 252, 270, 305, 315, 316, 366, 378, 395, 420, 427, 474, 540, 549, 553, 610, 630, 711, 732, 756, 790, 854, 915, 945, 948, 1098, 1106, 1185, 1220, 1260, 1281, 1422, 1580, 1647, 1659, 1708, 1830, 1890, 2133, 2135, 2196, 2212, 2370, 2562, 2745, 2765, 2844, 3294, 3318, 3555, 3660, 3780, 3843, 4266, 4270, 4740, 4819, 4977, 5124, 5490, 5530, 6405, 6588, 6636, 7110, 7686, 8235, 8295, 8532, 8540, 9638, 9954, 10665, 10980, 11060, 11529, 12810, 14220, 14457, 14931, 15372, 16470, 16590, 19215, 19276, 19908, 21330, 23058, 24095, 24885, 25620, 28914, 29862, 32940, 33180, 33733, 38430, 42660, 43371, 46116, 48190, 49770, 57645, 57828, 59724, 67466, 72285, 74655, 76860, 86742, 96380, 99540, 101199, 115290, 130113, 134932, 144570, 149310, 168665, 173484, 202398, 216855, 230580, 260226, 289140, 298620, 303597, 337330, 404796, 433710, 505995, 520452, 607194, 650565, 674660, 867420, 910791, 1011990, 1214388, 1301130, 1517985, 1821582, 2023980, 2602260, 3035970, 3643164, 4553955, 6071940, 9107910, 18215820]

約数ペア:

[(1, 18215820), (2, 9107910), (3, 6071940), (4, 4553955), (5, 3643164), (6, 3035970), (7, 2602260), (9, 2023980), (10, 1821582), (12, 1517985), (14, 1301130), (15, 1214388), (18, 1011990), (20, 910791), (21, 867420), (27, 674660), (28, 650565), (30, 607194), (35, 520452), (36, 505995), (42, 433710), (45, 404796), (54, 337330), (60, 303597), (61, 298620), (63, 289140), (70, 260226), (79, 230580), (84, 216855), (90, 202398), (105, 173484), (108, 168665), (122, 149310), (126, 144570), (135, 134932), (140, 130113), (158, 115290), (180, 101199), (183, 99540), (189, 96380), (210, 86742), (237, 76860), (244, 74655), (252, 72285), (270, 67466), (305, 59724), (315, 57828), (316, 57645), (366, 49770), (378, 48190), (395, 46116), (420, 43371), (427, 42660), (474, 38430), (540, 33733), (549, 33180), (553, 32940), (610, 29862), (630, 28914), (711, 25620), (732, 24885), (756, 24095), (790, 23058), (854, 21330), (915, 19908), (945, 19276), (948, 19215), (1098, 16590), (1106, 16470), (1185, 15372), (1220, 14931), (1260, 14457), (1281, 14220), (1422, 12810), (1580, 11529), (1647, 11060), (1659, 10980), (1708, 10665), (1830, 9954), (1890, 9638), (2133, 8540), (2135, 8532), (2196, 8295), (2212, 8235), (2370, 7686), (2562, 7110), (2745, 6636), (2765, 6588), (2844, 6405), (3294, 5530), (3318, 5490), (3555, 5124), (3660, 4977), (3780, 4819), (3843, 4740), (4266, 4270)]