27929980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 40654340

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 71, 85, 89, 130, 142, 170, 178, 221, 260, 284, 340, 355, 356, 442, 445, 710, 884, 890, 923, 1105, 1157, 1207, 1420, 1513, 1780, 1846, 2210, 2314, 2414, 3026, 3692, 4420, 4615, 4628, 4828, 5785, 6035, 6052, 6319, 7565, 9230, 11570, 12070, 12638, 15130, 15691, 18460, 19669, 23140, 24140, 25276, 30260, 31382, 31595, 39338, 62764, 63190, 78455, 78676, 82147, 98345, 107423, 126380, 156910, 164294, 196690, 214846, 313820, 328588, 393380, 410735, 429692, 537115, 821470, 1074230, 1396499, 1642940, 2148460, 2792998, 5585996, 6982495, 13964990, 27929980]

約数ペア:

[(1, 27929980), (2, 13964990), (4, 6982495), (5, 5585996), (10, 2792998), (13, 2148460), (17, 1642940), (20, 1396499), (26, 1074230), (34, 821470), (52, 537115), (65, 429692), (68, 410735), (71, 393380), (85, 328588), (89, 313820), (130, 214846), (142, 196690), (170, 164294), (178, 156910), (221, 126380), (260, 107423), (284, 98345), (340, 82147), (355, 78676), (356, 78455), (442, 63190), (445, 62764), (710, 39338), (884, 31595), (890, 31382), (923, 30260), (1105, 25276), (1157, 24140), (1207, 23140), (1420, 19669), (1513, 18460), (1780, 15691), (1846, 15130), (2210, 12638), (2314, 12070), (2414, 11570), (3026, 9230), (3692, 7565), (4420, 6319), (4615, 6052), (4628, 6035), (4828, 5785)]