280804895

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 437529600

約数和(自身を除く): 156724705

約数列:

[1, 5, 7, 17, 19, 35, 59, 85, 95, 119, 133, 295, 323, 413, 421, 595, 665, 1003, 1121, 1615, 2065, 2105, 2261, 2947, 5015, 5605, 7021, 7157, 7847, 7999, 11305, 14735, 19057, 24839, 35105, 35785, 39235, 39995, 50099, 55993, 95285, 124195, 133399, 135983, 173873, 250495, 279965, 422263, 471941, 666995, 679915, 869365, 951881, 2111315, 2359705, 2955841, 3303587, 4759405, 8022997, 14779205, 16517935, 40114985, 56160979, 280804895]

約数ペア:

[(1, 280804895), (5, 56160979), (7, 40114985), (17, 16517935), (19, 14779205), (35, 8022997), (59, 4759405), (85, 3303587), (95, 2955841), (119, 2359705), (133, 2111315), (295, 951881), (323, 869365), (413, 679915), (421, 666995), (595, 471941), (665, 422263), (1003, 279965), (1121, 250495), (1615, 173873), (2065, 135983), (2105, 133399), (2261, 124195), (2947, 95285), (5015, 55993), (5605, 50099), (7021, 39995), (7157, 39235), (7847, 35785), (7999, 35105), (11305, 24839), (14735, 19057)]