20656996880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1\times {\mathrm{1129}}^1$

素因数の和:1469

約数の個数: 160

約数和(自身を含む): 52694648160

約数和(自身を除く): 32037651280

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, 1129, 1168, 1205, 1460, 1898, 1928, 2258, 2410, 2920, 3133, 3796, 3856, 4516, 4745, 4820, 5645, 5840, 6266, 7592, 9032, 9490, 9640, 11290, 12532, 14677, 15184, 15665, 17593, 18064, 18980, 19280, 22580, 25064, 29354, 31330, 35186, 37960, 45160, 50128, 58708, 62660, 70372, 73385, 75920, 82417, 87965, 90320, 117416, 125320, 140744, 146770, 164834, 175930, 228709, 234832, 250640, 272089, 281488, 293540, 329668, 351860, 412085, 457418, 544178, 587080, 659336, 703720, 824170, 914836, 1071421, 1088356, 1143545, 1174160, 1318672, 1360445, 1407440, 1648340, 1829672, 2142842, 2176712, 2287090, 2720890, 3296680, 3537157, 3659344, 4285684, 4353424, 4574180, 5357105, 5441780, 6593360, 7074314, 8571368, 9148360, 10714210, 10883560, 14148628, 17142736, 17685785, 18296720, 19862497, 21428420, 21767120, 28297256, 35371570, 39724994, 42856840, 56594512, 70743140, 79449988, 85713680, 99312485, 141486280, 158899976, 198624970, 258212461, 282972560, 317799952, 397249940, 516424922, 794499880, 1032849844, 1291062305, 1588999760, 2065699688, 2582124610, 4131399376, 5164249220, 10328498440, 20656996880]

約数ペア:

[(1, 20656996880), (2, 10328498440), (4, 5164249220), (5, 4131399376), (8, 2582124610), (10, 2065699688), (13, 1588999760), (16, 1291062305), (20, 1032849844), (26, 794499880), (40, 516424922), (52, 397249940), (65, 317799952), (73, 282972560), (80, 258212461), (104, 198624970), (130, 158899976), (146, 141486280), (208, 99312485), (241, 85713680), (260, 79449988), (292, 70743140), (365, 56594512), (482, 42856840), (520, 39724994), (584, 35371570), (730, 28297256), (949, 21767120), (964, 21428420), (1040, 19862497), (1129, 18296720), (1168, 17685785), (1205, 17142736), (1460, 14148628), (1898, 10883560), (1928, 10714210), (2258, 9148360), (2410, 8571368), (2920, 7074314), (3133, 6593360), (3796, 5441780), (3856, 5357105), (4516, 4574180), (4745, 4353424), (4820, 4285684), (5645, 3659344), (5840, 3537157), (6266, 3296680), (7592, 2720890), (9032, 2287090), (9490, 2176712), (9640, 2142842), (11290, 1829672), (12532, 1648340), (14677, 1407440), (15184, 1360445), (15665, 1318672), (17593, 1174160), (18064, 1143545), (18980, 1088356), (19280, 1071421), (22580, 914836), (25064, 824170), (29354, 703720), (31330, 659336), (35186, 587080), (37960, 544178), (45160, 457418), (50128, 412085), (58708, 351860), (62660, 329668), (70372, 293540), (73385, 281488), (75920, 272089), (82417, 250640), (87965, 234832), (90320, 228709), (117416, 175930), (125320, 164834), (140744, 146770)]