18296720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 80

約数和(自身を含む): 46632432

約数和(自身を除く): 28335712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 241, 260, 292, 365, 482, 520, 584, 730, 949, 964, 1040, 1168, 1205, 1460, 1898, 1928, 2410, 2920, 3133, 3796, 3856, 4745, 4820, 5840, 6266, 7592, 9490, 9640, 12532, 15184, 15665, 17593, 18980, 19280, 25064, 31330, 35186, 37960, 50128, 62660, 70372, 75920, 87965, 125320, 140744, 175930, 228709, 250640, 281488, 351860, 457418, 703720, 914836, 1143545, 1407440, 1829672, 2287090, 3659344, 4574180, 9148360, 18296720]

約数ペア:

[(1, 18296720), (2, 9148360), (4, 4574180), (5, 3659344), (8, 2287090), (10, 1829672), (13, 1407440), (16, 1143545), (20, 914836), (26, 703720), (40, 457418), (52, 351860), (65, 281488), (73, 250640), (80, 228709), (104, 175930), (130, 140744), (146, 125320), (208, 87965), (241, 75920), (260, 70372), (292, 62660), (365, 50128), (482, 37960), (520, 35186), (584, 31330), (730, 25064), (949, 19280), (964, 18980), (1040, 17593), (1168, 15665), (1205, 15184), (1460, 12532), (1898, 9640), (1928, 9490), (2410, 7592), (2920, 6266), (3133, 5840), (3796, 4820), (3856, 4745)]