18429440

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:359

約数の個数: 80

約数和(自身を含む): 46255968

約数和(自身を除く): 27826528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 313, 320, 368, 460, 512, 626, 640, 736, 920, 1252, 1280, 1472, 1565, 1840, 2504, 2560, 2944, 3130, 3680, 5008, 5888, 6260, 7199, 7360, 10016, 11776, 12520, 14398, 14720, 20032, 25040, 28796, 29440, 35995, 40064, 50080, 57592, 58880, 71990, 80128, 100160, 115184, 143980, 160256, 200320, 230368, 287960, 400640, 460736, 575920, 801280, 921472, 1151840, 1842944, 2303680, 3685888, 4607360, 9214720, 18429440]

約数ペア:

[(1, 18429440), (2, 9214720), (4, 4607360), (5, 3685888), (8, 2303680), (10, 1842944), (16, 1151840), (20, 921472), (23, 801280), (32, 575920), (40, 460736), (46, 400640), (64, 287960), (80, 230368), (92, 200320), (115, 160256), (128, 143980), (160, 115184), (184, 100160), (230, 80128), (256, 71990), (313, 58880), (320, 57592), (368, 50080), (460, 40064), (512, 35995), (626, 29440), (640, 28796), (736, 25040), (920, 20032), (1252, 14720), (1280, 14398), (1472, 12520), (1565, 11776), (1840, 10016), (2504, 7360), (2560, 7199), (2944, 6260), (3130, 5888), (3680, 5008)]