64573020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 209664000

約数和(自身を除く): 145090980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 79, 90, 95, 114, 158, 171, 180, 190, 228, 237, 239, 285, 316, 342, 380, 395, 474, 478, 570, 684, 711, 717, 790, 855, 948, 956, 1140, 1185, 1195, 1422, 1434, 1501, 1580, 1710, 2151, 2370, 2390, 2844, 2868, 3002, 3420, 3555, 3585, 4302, 4503, 4541, 4740, 4780, 6004, 7110, 7170, 7505, 8604, 9006, 9082, 10755, 13509, 13623, 14220, 14340, 15010, 18012, 18164, 18881, 21510, 22515, 22705, 27018, 27246, 30020, 37762, 40869, 43020, 45030, 45410, 54036, 54492, 56643, 67545, 68115, 75524, 81738, 90060, 90820, 94405, 113286, 135090, 136230, 163476, 169929, 188810, 204345, 226572, 270180, 272460, 283215, 339858, 358739, 377620, 408690, 566430, 679716, 717478, 817380, 849645, 1076217, 1132860, 1434956, 1699290, 1793695, 2152434, 3228651, 3398580, 3587390, 4304868, 5381085, 6457302, 7174780, 10762170, 12914604, 16143255, 21524340, 32286510, 64573020]

約数ペア:

[(1, 64573020), (2, 32286510), (3, 21524340), (4, 16143255), (5, 12914604), (6, 10762170), (9, 7174780), (10, 6457302), (12, 5381085), (15, 4304868), (18, 3587390), (19, 3398580), (20, 3228651), (30, 2152434), (36, 1793695), (38, 1699290), (45, 1434956), (57, 1132860), (60, 1076217), (76, 849645), (79, 817380), (90, 717478), (95, 679716), (114, 566430), (158, 408690), (171, 377620), (180, 358739), (190, 339858), (228, 283215), (237, 272460), (239, 270180), (285, 226572), (316, 204345), (342, 188810), (380, 169929), (395, 163476), (474, 136230), (478, 135090), (570, 113286), (684, 94405), (711, 90820), (717, 90060), (790, 81738), (855, 75524), (948, 68115), (956, 67545), (1140, 56643), (1185, 54492), (1195, 54036), (1422, 45410), (1434, 45030), (1501, 43020), (1580, 40869), (1710, 37762), (2151, 30020), (2370, 27246), (2390, 27018), (2844, 22705), (2868, 22515), (3002, 21510), (3420, 18881), (3555, 18164), (3585, 18012), (4302, 15010), (4503, 14340), (4541, 14220), (4740, 13623), (4780, 13509), (6004, 10755), (7110, 9082), (7170, 9006), (7505, 8604)]