18292480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 45327744

約数和(自身を除く): 27035264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 461, 496, 620, 640, 922, 992, 1240, 1280, 1844, 1984, 2305, 2480, 3688, 3968, 4610, 4960, 7376, 7936, 9220, 9920, 14291, 14752, 18440, 19840, 28582, 29504, 36880, 39680, 57164, 59008, 71455, 73760, 114328, 118016, 142910, 147520, 228656, 285820, 295040, 457312, 571640, 590080, 914624, 1143280, 1829248, 2286560, 3658496, 4573120, 9146240, 18292480]

約数ペア:

[(1, 18292480), (2, 9146240), (4, 4573120), (5, 3658496), (8, 2286560), (10, 1829248), (16, 1143280), (20, 914624), (31, 590080), (32, 571640), (40, 457312), (62, 295040), (64, 285820), (80, 228656), (124, 147520), (128, 142910), (155, 118016), (160, 114328), (248, 73760), (256, 71455), (310, 59008), (320, 57164), (461, 39680), (496, 36880), (620, 29504), (640, 28582), (922, 19840), (992, 18440), (1240, 14752), (1280, 14291), (1844, 9920), (1984, 9220), (2305, 7936), (2480, 7376), (3688, 4960), (3968, 4610)]