61187800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 149990400

約数和(自身を除く): 88802600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 71, 100, 124, 139, 142, 155, 200, 248, 278, 284, 310, 355, 556, 568, 620, 695, 710, 775, 1112, 1240, 1390, 1420, 1550, 1775, 2201, 2780, 2840, 3100, 3475, 3550, 4309, 4402, 5560, 6200, 6950, 7100, 8618, 8804, 9869, 11005, 13900, 14200, 17236, 17608, 19738, 21545, 22010, 27800, 34472, 39476, 43090, 44020, 49345, 55025, 78952, 86180, 88040, 98690, 107725, 110050, 172360, 197380, 215450, 220100, 246725, 305939, 394760, 430900, 440200, 493450, 611878, 861800, 986900, 1223756, 1529695, 1973800, 2447512, 3059390, 6118780, 7648475, 12237560, 15296950, 30593900, 61187800]

約数ペア:

[(1, 61187800), (2, 30593900), (4, 15296950), (5, 12237560), (8, 7648475), (10, 6118780), (20, 3059390), (25, 2447512), (31, 1973800), (40, 1529695), (50, 1223756), (62, 986900), (71, 861800), (100, 611878), (124, 493450), (139, 440200), (142, 430900), (155, 394760), (200, 305939), (248, 246725), (278, 220100), (284, 215450), (310, 197380), (355, 172360), (556, 110050), (568, 107725), (620, 98690), (695, 88040), (710, 86180), (775, 78952), (1112, 55025), (1240, 49345), (1390, 44020), (1420, 43090), (1550, 39476), (1775, 34472), (2201, 27800), (2780, 22010), (2840, 21545), (3100, 19738), (3475, 17608), (3550, 17236), (4309, 14200), (4402, 13900), (5560, 11005), (6200, 9869), (6950, 8804), (7100, 8618)]