149505280

素因数分解:

$2^8\times 5^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 360267264

約数和(自身を除く): 210761984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 271, 320, 431, 542, 640, 862, 1084, 1280, 1355, 1724, 2155, 2168, 2710, 3448, 4310, 4336, 5420, 6896, 8620, 8672, 10840, 13792, 17240, 17344, 21680, 27584, 34480, 34688, 43360, 55168, 68960, 69376, 86720, 110336, 116801, 137920, 173440, 233602, 275840, 346880, 467204, 551680, 584005, 934408, 1168010, 1868816, 2336020, 3737632, 4672040, 7475264, 9344080, 14950528, 18688160, 29901056, 37376320, 74752640, 149505280]

約数ペア:

[(1, 149505280), (2, 74752640), (4, 37376320), (5, 29901056), (8, 18688160), (10, 14950528), (16, 9344080), (20, 7475264), (32, 4672040), (40, 3737632), (64, 2336020), (80, 1868816), (128, 1168010), (160, 934408), (256, 584005), (271, 551680), (320, 467204), (431, 346880), (542, 275840), (640, 233602), (862, 173440), (1084, 137920), (1280, 116801), (1355, 110336), (1724, 86720), (2155, 69376), (2168, 68960), (2710, 55168), (3448, 43360), (4310, 34688), (4336, 34480), (5420, 27584), (6896, 21680), (8620, 17344), (8672, 17240), (10840, 13792)]