639940860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16087}}^1$

素因数の和:16132

約数の個数: 144

約数和(自身を含む): 2213580096

約数和(自身を除く): 1573639236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6630, 7956, 9945, 13260, 16087, 19890, 32174, 39780, 48261, 64348, 80435, 96522, 144783, 160870, 193044, 209131, 241305, 273479, 289566, 321740, 418262, 482610, 546958, 579132, 627393, 723915, 820437, 836524, 965220, 1045655, 1093916, 1254786, 1367395, 1447830, 1640874, 1882179, 2091310, 2461311, 2509572, 2734790, 2895660, 3136965, 3281748, 3555227, 3764358, 4102185, 4182620, 4922622, 5469580, 6273930, 7110454, 7528716, 8204370, 9410895, 9845244, 10665681, 12306555, 12547860, 14220908, 16408740, 17776135, 18821790, 21331362, 24613110, 31997043, 35552270, 37643580, 42662724, 49226220, 53328405, 63994086, 71104540, 106656810, 127988172, 159985215, 213313620, 319970430, 639940860]

約数ペア:

[(1, 639940860), (2, 319970430), (3, 213313620), (4, 159985215), (5, 127988172), (6, 106656810), (9, 71104540), (10, 63994086), (12, 53328405), (13, 49226220), (15, 42662724), (17, 37643580), (18, 35552270), (20, 31997043), (26, 24613110), (30, 21331362), (34, 18821790), (36, 17776135), (39, 16408740), (45, 14220908), (51, 12547860), (52, 12306555), (60, 10665681), (65, 9845244), (68, 9410895), (78, 8204370), (85, 7528716), (90, 7110454), (102, 6273930), (117, 5469580), (130, 4922622), (153, 4182620), (156, 4102185), (170, 3764358), (180, 3555227), (195, 3281748), (204, 3136965), (221, 2895660), (234, 2734790), (255, 2509572), (260, 2461311), (306, 2091310), (340, 1882179), (390, 1640874), (442, 1447830), (468, 1367395), (510, 1254786), (585, 1093916), (612, 1045655), (663, 965220), (765, 836524), (780, 820437), (884, 723915), (1020, 627393), (1105, 579132), (1170, 546958), (1326, 482610), (1530, 418262), (1989, 321740), (2210, 289566), (2340, 273479), (2652, 241305), (3060, 209131), (3315, 193044), (3978, 160870), (4420, 144783), (6630, 96522), (7956, 80435), (9945, 64348), (13260, 48261), (16087, 39780), (19890, 32174)]