68908140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3256

約数の個数: 144

約数和(自身を含む): 253012032

約数和(自身を除く): 184103892

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3217, 3570, 4284, 5355, 6434, 7140, 9651, 10710, 12868, 16085, 19302, 21420, 22519, 28953, 32170, 38604, 45038, 48255, 54689, 57906, 64340, 67557, 90076, 96510, 109378, 112595, 115812, 135114, 144765, 164067, 193020, 202671, 218756, 225190, 270228, 273445, 289530, 328134, 337785, 382823, 405342, 450380, 492201, 546890, 579060, 656268, 675570, 765646, 810684, 820335, 984402, 1013355, 1093780, 1148469, 1351140, 1531292, 1640670, 1914115, 1968804, 2026710, 2296938, 2461005, 3281340, 3445407, 3828230, 4053420, 4593876, 4922010, 5742345, 6890814, 7656460, 9844020, 11484690, 13781628, 17227035, 22969380, 34454070, 68908140]

約数ペア:

[(1, 68908140), (2, 34454070), (3, 22969380), (4, 17227035), (5, 13781628), (6, 11484690), (7, 9844020), (9, 7656460), (10, 6890814), (12, 5742345), (14, 4922010), (15, 4593876), (17, 4053420), (18, 3828230), (20, 3445407), (21, 3281340), (28, 2461005), (30, 2296938), (34, 2026710), (35, 1968804), (36, 1914115), (42, 1640670), (45, 1531292), (51, 1351140), (60, 1148469), (63, 1093780), (68, 1013355), (70, 984402), (84, 820335), (85, 810684), (90, 765646), (102, 675570), (105, 656268), (119, 579060), (126, 546890), (140, 492201), (153, 450380), (170, 405342), (180, 382823), (204, 337785), (210, 328134), (238, 289530), (252, 273445), (255, 270228), (306, 225190), (315, 218756), (340, 202671), (357, 193020), (420, 164067), (476, 144765), (510, 135114), (595, 115812), (612, 112595), (630, 109378), (714, 96510), (765, 90076), (1020, 67557), (1071, 64340), (1190, 57906), (1260, 54689), (1428, 48255), (1530, 45038), (1785, 38604), (2142, 32170), (2380, 28953), (3060, 22519), (3217, 21420), (3570, 19302), (4284, 16085), (5355, 12868), (6434, 10710), (7140, 9651)]