18898720

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4073}}^1$

素因数の和:4117

約数の個数: 48

約数和(自身を含む): 46199160

約数和(自身を除く): 27300440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4073, 4640, 8146, 16292, 20365, 32584, 40730, 65168, 81460, 118117, 130336, 162920, 236234, 325840, 472468, 590585, 651680, 944936, 1181170, 1889872, 2362340, 3779744, 4724680, 9449360, 18898720]

約数ペア:

[(1, 18898720), (2, 9449360), (4, 4724680), (5, 3779744), (8, 2362340), (10, 1889872), (16, 1181170), (20, 944936), (29, 651680), (32, 590585), (40, 472468), (58, 325840), (80, 236234), (116, 162920), (145, 130336), (160, 118117), (232, 81460), (290, 65168), (464, 40730), (580, 32584), (928, 20365), (1160, 16292), (2320, 8146), (4073, 4640)]