281448260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 646652160

約数和(自身を除く): 365203900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 89, 131, 142, 170, 178, 262, 284, 340, 355, 356, 445, 524, 655, 710, 890, 1207, 1310, 1420, 1513, 1780, 2227, 2414, 2620, 3026, 4454, 4828, 6035, 6052, 6319, 7565, 8908, 9301, 11135, 11659, 12070, 12638, 15130, 18602, 22270, 23318, 24140, 25276, 30260, 31595, 37204, 44540, 46505, 46636, 58295, 63190, 93010, 107423, 116590, 126380, 158117, 186020, 198203, 214846, 233180, 316234, 396406, 429692, 537115, 632468, 790585, 792812, 827789, 991015, 1074230, 1581170, 1655578, 1982030, 2148460, 3162340, 3311156, 3964060, 4138945, 8277890, 14072413, 16555780, 28144826, 56289652, 70362065, 140724130, 281448260]

約数ペア:

[(1, 281448260), (2, 140724130), (4, 70362065), (5, 56289652), (10, 28144826), (17, 16555780), (20, 14072413), (34, 8277890), (68, 4138945), (71, 3964060), (85, 3311156), (89, 3162340), (131, 2148460), (142, 1982030), (170, 1655578), (178, 1581170), (262, 1074230), (284, 991015), (340, 827789), (355, 792812), (356, 790585), (445, 632468), (524, 537115), (655, 429692), (710, 396406), (890, 316234), (1207, 233180), (1310, 214846), (1420, 198203), (1513, 186020), (1780, 158117), (2227, 126380), (2414, 116590), (2620, 107423), (3026, 93010), (4454, 63190), (4828, 58295), (6035, 46636), (6052, 46505), (6319, 44540), (7565, 37204), (8908, 31595), (9301, 30260), (11135, 25276), (11659, 24140), (12070, 23318), (12638, 22270), (15130, 18602)]