90986240

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2293}}^1$

素因数の和:2345

約数の個数: 72

約数和(自身を含む): 225068928

約数和(自身を除く): 134082688

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, 620, 640, 992, 1240, 1280, 1984, 2293, 2480, 3968, 4586, 4960, 7936, 9172, 9920, 11465, 18344, 19840, 22930, 36688, 39680, 45860, 71083, 73376, 91720, 142166, 146752, 183440, 284332, 293504, 355415, 366880, 568664, 587008, 710830, 733760, 1137328, 1421660, 1467520, 2274656, 2843320, 2935040, 4549312, 5686640, 9098624, 11373280, 18197248, 22746560, 45493120, 90986240]

約数ペア:

[(1, 90986240), (2, 45493120), (4, 22746560), (5, 18197248), (8, 11373280), (10, 9098624), (16, 5686640), (20, 4549312), (31, 2935040), (32, 2843320), (40, 2274656), (62, 1467520), (64, 1421660), (80, 1137328), (124, 733760), (128, 710830), (155, 587008), (160, 568664), (248, 366880), (256, 355415), (310, 293504), (320, 284332), (496, 183440), (620, 146752), (640, 142166), (992, 91720), (1240, 73376), (1280, 71083), (1984, 45860), (2293, 39680), (2480, 36688), (3968, 22930), (4586, 19840), (4960, 18344), (7936, 11465), (9172, 9920)]