215780500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 514594080

約数和(自身を除く): 298813580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 125, 130, 178, 250, 260, 325, 356, 373, 445, 500, 650, 746, 890, 1157, 1300, 1492, 1625, 1780, 1865, 2225, 2314, 3250, 3730, 4450, 4628, 4849, 5785, 6500, 7460, 8900, 9325, 9698, 11125, 11570, 18650, 19396, 22250, 23140, 24245, 28925, 33197, 37300, 44500, 46625, 48490, 57850, 66394, 93250, 96980, 115700, 121225, 132788, 144625, 165985, 186500, 242450, 289250, 331970, 431561, 484900, 578500, 606125, 663940, 829925, 863122, 1212250, 1659850, 1726244, 2157805, 2424500, 3319700, 4149625, 4315610, 8299250, 8631220, 10789025, 16598500, 21578050, 43156100, 53945125, 107890250, 215780500]

約数ペア:

[(1, 215780500), (2, 107890250), (4, 53945125), (5, 43156100), (10, 21578050), (13, 16598500), (20, 10789025), (25, 8631220), (26, 8299250), (50, 4315610), (52, 4149625), (65, 3319700), (89, 2424500), (100, 2157805), (125, 1726244), (130, 1659850), (178, 1212250), (250, 863122), (260, 829925), (325, 663940), (356, 606125), (373, 578500), (445, 484900), (500, 431561), (650, 331970), (746, 289250), (890, 242450), (1157, 186500), (1300, 165985), (1492, 144625), (1625, 132788), (1780, 121225), (1865, 115700), (2225, 96980), (2314, 93250), (3250, 66394), (3730, 57850), (4450, 48490), (4628, 46625), (4849, 44500), (5785, 37300), (6500, 33197), (7460, 28925), (8900, 24245), (9325, 23140), (9698, 22250), (11125, 19396), (11570, 18650)]