163640320

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1087

約数の個数: 88

約数和(自身を含む): 405600768

約数和(自身を除く): 241960448

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, 496, 512, 620, 640, 992, 1024, 1031, 1240, 1280, 1984, 2062, 2480, 2560, 3968, 4124, 4960, 5120, 5155, 7936, 8248, 9920, 10310, 15872, 16496, 19840, 20620, 31744, 31961, 32992, 39680, 41240, 63922, 65984, 79360, 82480, 127844, 131968, 158720, 159805, 164960, 255688, 263936, 319610, 329920, 511376, 527872, 639220, 659840, 1022752, 1055744, 1278440, 1319680, 2045504, 2556880, 2639360, 4091008, 5113760, 5278720, 8182016, 10227520, 16364032, 20455040, 32728064, 40910080, 81820160, 163640320]

約数ペア:

[(1, 163640320), (2, 81820160), (4, 40910080), (5, 32728064), (8, 20455040), (10, 16364032), (16, 10227520), (20, 8182016), (31, 5278720), (32, 5113760), (40, 4091008), (62, 2639360), (64, 2556880), (80, 2045504), (124, 1319680), (128, 1278440), (155, 1055744), (160, 1022752), (248, 659840), (256, 639220), (310, 527872), (320, 511376), (496, 329920), (512, 319610), (620, 263936), (640, 255688), (992, 164960), (1024, 159805), (1031, 158720), (1240, 131968), (1280, 127844), (1984, 82480), (2062, 79360), (2480, 65984), (2560, 63922), (3968, 41240), (4124, 39680), (4960, 32992), (5120, 31961), (5155, 31744), (7936, 20620), (8248, 19840), (9920, 16496), (10310, 15872)]