418366720

素因数分解:

$2^8\times 5^1\times {\mathrm{461}}^1\times {\mathrm{709}}^1$

素因数の和:1191

約数の個数: 72

約数和(自身を含む): 1005709320

約数和(自身を除く): 587342600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 461, 640, 709, 922, 1280, 1418, 1844, 2305, 2836, 3545, 3688, 4610, 5672, 7090, 7376, 9220, 11344, 14180, 14752, 18440, 22688, 28360, 29504, 36880, 45376, 56720, 59008, 73760, 90752, 113440, 118016, 147520, 181504, 226880, 295040, 326849, 453760, 590080, 653698, 907520, 1307396, 1634245, 2614792, 3268490, 5229584, 6536980, 10459168, 13073960, 20918336, 26147920, 41836672, 52295840, 83673344, 104591680, 209183360, 418366720]

約数ペア:

[(1, 418366720), (2, 209183360), (4, 104591680), (5, 83673344), (8, 52295840), (10, 41836672), (16, 26147920), (20, 20918336), (32, 13073960), (40, 10459168), (64, 6536980), (80, 5229584), (128, 3268490), (160, 2614792), (256, 1634245), (320, 1307396), (461, 907520), (640, 653698), (709, 590080), (922, 453760), (1280, 326849), (1418, 295040), (1844, 226880), (2305, 181504), (2836, 147520), (3545, 118016), (3688, 113440), (4610, 90752), (5672, 73760), (7090, 59008), (7376, 56720), (9220, 45376), (11344, 36880), (14180, 29504), (14752, 28360), (18440, 22688)]