19289640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 62726400

約数和(自身を除く): 43436760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 241, 276, 290, 345, 348, 435, 460, 482, 552, 580, 667, 690, 696, 723, 870, 920, 964, 1160, 1205, 1334, 1380, 1446, 1740, 1928, 2001, 2410, 2668, 2760, 2892, 3335, 3480, 3615, 4002, 4820, 5336, 5543, 5784, 6670, 6989, 7230, 8004, 9640, 10005, 11086, 13340, 13978, 14460, 16008, 16629, 20010, 20967, 22172, 26680, 27715, 27956, 28920, 33258, 34945, 40020, 41934, 44344, 55430, 55912, 66516, 69890, 80040, 83145, 83868, 104835, 110860, 133032, 139780, 160747, 166290, 167736, 209670, 221720, 279560, 321494, 332580, 419340, 482241, 642988, 665160, 803735, 838680, 964482, 1285976, 1607470, 1928964, 2411205, 3214940, 3857928, 4822410, 6429880, 9644820, 19289640]

約数ペア:

[(1, 19289640), (2, 9644820), (3, 6429880), (4, 4822410), (5, 3857928), (6, 3214940), (8, 2411205), (10, 1928964), (12, 1607470), (15, 1285976), (20, 964482), (23, 838680), (24, 803735), (29, 665160), (30, 642988), (40, 482241), (46, 419340), (58, 332580), (60, 321494), (69, 279560), (87, 221720), (92, 209670), (115, 167736), (116, 166290), (120, 160747), (138, 139780), (145, 133032), (174, 110860), (184, 104835), (230, 83868), (232, 83145), (241, 80040), (276, 69890), (290, 66516), (345, 55912), (348, 55430), (435, 44344), (460, 41934), (482, 40020), (552, 34945), (580, 33258), (667, 28920), (690, 27956), (696, 27715), (723, 26680), (870, 22172), (920, 20967), (964, 20010), (1160, 16629), (1205, 16008), (1334, 14460), (1380, 13978), (1446, 13340), (1740, 11086), (1928, 10005), (2001, 9640), (2410, 8004), (2668, 7230), (2760, 6989), (2892, 6670), (3335, 5784), (3480, 5543), (3615, 5336), (4002, 4820)]