405290470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{997}}^1$

素因数の和:1129

約数の個数: 64

約数和(自身を含む): 814847040

約数和(自身を除く): 409556570

約数列:

[1, 2, 5, 10, 13, 26, 53, 59, 65, 106, 118, 130, 265, 295, 530, 590, 689, 767, 997, 1378, 1534, 1994, 3127, 3445, 3835, 4985, 6254, 6890, 7670, 9970, 12961, 15635, 25922, 31270, 40651, 52841, 58823, 64805, 81302, 105682, 117646, 129610, 203255, 264205, 294115, 406510, 528410, 588230, 686933, 764699, 1373866, 1529398, 3117619, 3434665, 3823495, 6235238, 6869330, 7646990, 15588095, 31176190, 40529047, 81058094, 202645235, 405290470]

約数ペア:

[(1, 405290470), (2, 202645235), (5, 81058094), (10, 40529047), (13, 31176190), (26, 15588095), (53, 7646990), (59, 6869330), (65, 6235238), (106, 3823495), (118, 3434665), (130, 3117619), (265, 1529398), (295, 1373866), (530, 764699), (590, 686933), (689, 588230), (767, 528410), (997, 406510), (1378, 294115), (1534, 264205), (1994, 203255), (3127, 129610), (3445, 117646), (3835, 105682), (4985, 81302), (6254, 64805), (6890, 58823), (7670, 52841), (9970, 40651), (12961, 31270), (15635, 25922)]