20803380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 42700620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 149, 156, 179, 195, 260, 298, 358, 390, 447, 537, 596, 716, 745, 780, 894, 895, 1074, 1490, 1788, 1790, 1937, 2148, 2235, 2327, 2685, 2980, 3580, 3874, 4470, 4654, 5370, 5811, 6981, 7748, 8940, 9308, 9685, 10740, 11622, 11635, 13962, 19370, 23244, 23270, 26671, 27924, 29055, 34905, 38740, 46540, 53342, 58110, 69810, 80013, 106684, 116220, 133355, 139620, 160026, 266710, 320052, 346723, 400065, 533420, 693446, 800130, 1040169, 1386892, 1600260, 1733615, 2080338, 3467230, 4160676, 5200845, 6934460, 10401690, 20803380]

約数ペア:

[(1, 20803380), (2, 10401690), (3, 6934460), (4, 5200845), (5, 4160676), (6, 3467230), (10, 2080338), (12, 1733615), (13, 1600260), (15, 1386892), (20, 1040169), (26, 800130), (30, 693446), (39, 533420), (52, 400065), (60, 346723), (65, 320052), (78, 266710), (130, 160026), (149, 139620), (156, 133355), (179, 116220), (195, 106684), (260, 80013), (298, 69810), (358, 58110), (390, 53342), (447, 46540), (537, 38740), (596, 34905), (716, 29055), (745, 27924), (780, 26671), (894, 23270), (895, 23244), (1074, 19370), (1490, 13962), (1788, 11635), (1790, 11622), (1937, 10740), (2148, 9685), (2235, 9308), (2327, 8940), (2685, 7748), (2980, 6981), (3580, 5811), (3874, 5370), (4470, 4654)]