81383320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 189889920

約数和(自身を除く): 108506600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 73, 94, 146, 188, 235, 292, 365, 376, 470, 584, 593, 730, 940, 1186, 1460, 1880, 2372, 2920, 2965, 3431, 4744, 5930, 6862, 11860, 13724, 17155, 23720, 27448, 27871, 34310, 43289, 55742, 68620, 86578, 111484, 137240, 139355, 173156, 216445, 222968, 278710, 346312, 432890, 557420, 865780, 1114840, 1731560, 2034583, 4069166, 8138332, 10172915, 16276664, 20345830, 40691660, 81383320]

約数ペア:

[(1, 81383320), (2, 40691660), (4, 20345830), (5, 16276664), (8, 10172915), (10, 8138332), (20, 4069166), (40, 2034583), (47, 1731560), (73, 1114840), (94, 865780), (146, 557420), (188, 432890), (235, 346312), (292, 278710), (365, 222968), (376, 216445), (470, 173156), (584, 139355), (593, 137240), (730, 111484), (940, 86578), (1186, 68620), (1460, 55742), (1880, 43289), (2372, 34310), (2920, 27871), (2965, 27448), (3431, 23720), (4744, 17155), (5930, 13724), (6862, 11860)]