647572245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2693}}^1$

素因数の和:2782

約数の個数: 64

約数和(自身を含む): 1173118464

約数和(自身を除く): 525546219

約数列:

[1, 3, 5, 15, 17, 23, 41, 51, 69, 85, 115, 123, 205, 255, 345, 391, 615, 697, 943, 1173, 1955, 2091, 2693, 2829, 3485, 4715, 5865, 8079, 10455, 13465, 14145, 16031, 40395, 45781, 48093, 61939, 80155, 110413, 137343, 185817, 228905, 240465, 309695, 331239, 552065, 686715, 929085, 1052963, 1656195, 1877021, 2539499, 3158889, 5264815, 5631063, 7618497, 9385105, 12697495, 15794445, 28155315, 38092485, 43171483, 129514449, 215857415, 647572245]

約数ペア:

[(1, 647572245), (3, 215857415), (5, 129514449), (15, 43171483), (17, 38092485), (23, 28155315), (41, 15794445), (51, 12697495), (69, 9385105), (85, 7618497), (115, 5631063), (123, 5264815), (205, 3158889), (255, 2539499), (345, 1877021), (391, 1656195), (615, 1052963), (697, 929085), (943, 686715), (1173, 552065), (1955, 331239), (2091, 309695), (2693, 240465), (2829, 228905), (3485, 185817), (4715, 137343), (5865, 110413), (8079, 80155), (10455, 61939), (13465, 48093), (14145, 45781), (16031, 40395)]