81021330

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:633

約数の個数: 128

約数和(自身を含む): 238775040

約数和(自身を除く): 157753710

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 41, 45, 54, 65, 78, 82, 90, 117, 123, 130, 135, 195, 205, 234, 246, 270, 351, 369, 390, 410, 533, 563, 585, 615, 702, 738, 1066, 1107, 1126, 1170, 1230, 1599, 1689, 1755, 1845, 2214, 2665, 2815, 3198, 3378, 3510, 3690, 4797, 5067, 5330, 5535, 5630, 7319, 7995, 8445, 9594, 10134, 11070, 14391, 14638, 15201, 15990, 16890, 21957, 23083, 23985, 25335, 28782, 30402, 36595, 43914, 46166, 47970, 50670, 65871, 69249, 71955, 73190, 76005, 109785, 115415, 131742, 138498, 143910, 152010, 197613, 207747, 219570, 230830, 300079, 329355, 346245, 395226, 415494, 600158, 623241, 658710, 692490, 900237, 988065, 1038735, 1246482, 1500395, 1800474, 1976130, 2077470, 2700711, 3000790, 3116205, 4501185, 5401422, 6232410, 8102133, 9002370, 13503555, 16204266, 27007110, 40510665, 81021330]

約数ペア:

[(1, 81021330), (2, 40510665), (3, 27007110), (5, 16204266), (6, 13503555), (9, 9002370), (10, 8102133), (13, 6232410), (15, 5401422), (18, 4501185), (26, 3116205), (27, 3000790), (30, 2700711), (39, 2077470), (41, 1976130), (45, 1800474), (54, 1500395), (65, 1246482), (78, 1038735), (82, 988065), (90, 900237), (117, 692490), (123, 658710), (130, 623241), (135, 600158), (195, 415494), (205, 395226), (234, 346245), (246, 329355), (270, 300079), (351, 230830), (369, 219570), (390, 207747), (410, 197613), (533, 152010), (563, 143910), (585, 138498), (615, 131742), (702, 115415), (738, 109785), (1066, 76005), (1107, 73190), (1126, 71955), (1170, 69249), (1230, 65871), (1599, 50670), (1689, 47970), (1755, 46166), (1845, 43914), (2214, 36595), (2665, 30402), (2815, 28782), (3198, 25335), (3378, 23985), (3510, 23083), (3690, 21957), (4797, 16890), (5067, 15990), (5330, 15201), (5535, 14638), (5630, 14391), (7319, 11070), (7995, 10134), (8445, 9594)]