780378625

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 96

約数和(自身を含む): 1165443552

約数和(自身を除く): 385064927

約数列:

[1, 5, 13, 17, 25, 41, 53, 65, 85, 125, 169, 205, 221, 265, 325, 425, 533, 689, 697, 845, 901, 1025, 1105, 1325, 1625, 2125, 2173, 2665, 2873, 3445, 3485, 4225, 4505, 5125, 5525, 6625, 6929, 8957, 9061, 10865, 11713, 13325, 14365, 17225, 17425, 21125, 22525, 27625, 28249, 34645, 36941, 44785, 45305, 54325, 58565, 66625, 71825, 86125, 87125, 112625, 117793, 141245, 152269, 173225, 184705, 223925, 226525, 271625, 292825, 359125, 367237, 480233, 588965, 706225, 761345, 866125, 923525, 1119625, 1132625, 1464125, 1836185, 2401165, 2944825, 3531125, 3806725, 4617625, 6243029, 9180925, 12005825, 14724125, 19033625, 31215145, 45904625, 60029125, 156075725, 780378625]

約数ペア:

[(1, 780378625), (5, 156075725), (13, 60029125), (17, 45904625), (25, 31215145), (41, 19033625), (53, 14724125), (65, 12005825), (85, 9180925), (125, 6243029), (169, 4617625), (205, 3806725), (221, 3531125), (265, 2944825), (325, 2401165), (425, 1836185), (533, 1464125), (689, 1132625), (697, 1119625), (845, 923525), (901, 866125), (1025, 761345), (1105, 706225), (1325, 588965), (1625, 480233), (2125, 367237), (2173, 359125), (2665, 292825), (2873, 271625), (3445, 226525), (3485, 223925), (4225, 184705), (4505, 173225), (5125, 152269), (5525, 141245), (6625, 117793), (6929, 112625), (8957, 87125), (9061, 86125), (10865, 71825), (11713, 66625), (13325, 58565), (14365, 54325), (17225, 45305), (17425, 44785), (21125, 36941), (22525, 34645), (27625, 28249)]