128614040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 323481600

約数和(自身を除く): 194867560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 53, 62, 76, 95, 103, 106, 124, 152, 155, 190, 206, 212, 248, 265, 310, 380, 412, 424, 515, 530, 589, 620, 760, 824, 1007, 1030, 1060, 1178, 1240, 1643, 1957, 2014, 2060, 2120, 2356, 2945, 3193, 3286, 3914, 4028, 4120, 4712, 5035, 5459, 5890, 6386, 6572, 7828, 8056, 8215, 9785, 10070, 10918, 11780, 12772, 13144, 15656, 15965, 16430, 19570, 20140, 21836, 23560, 25544, 27295, 31217, 31930, 32860, 39140, 40280, 43672, 54590, 60667, 62434, 63860, 65720, 78280, 103721, 109180, 121334, 124868, 127720, 156085, 169229, 207442, 218360, 242668, 249736, 303335, 312170, 338458, 414884, 485336, 518605, 606670, 624340, 676916, 829768, 846145, 1037210, 1213340, 1248680, 1353832, 1692290, 2074420, 2426680, 3215351, 3384580, 4148840, 6430702, 6769160, 12861404, 16076755, 25722808, 32153510, 64307020, 128614040]

約数ペア:

[(1, 128614040), (2, 64307020), (4, 32153510), (5, 25722808), (8, 16076755), (10, 12861404), (19, 6769160), (20, 6430702), (31, 4148840), (38, 3384580), (40, 3215351), (53, 2426680), (62, 2074420), (76, 1692290), (95, 1353832), (103, 1248680), (106, 1213340), (124, 1037210), (152, 846145), (155, 829768), (190, 676916), (206, 624340), (212, 606670), (248, 518605), (265, 485336), (310, 414884), (380, 338458), (412, 312170), (424, 303335), (515, 249736), (530, 242668), (589, 218360), (620, 207442), (760, 169229), (824, 156085), (1007, 127720), (1030, 124868), (1060, 121334), (1178, 109180), (1240, 103721), (1643, 78280), (1957, 65720), (2014, 63860), (2060, 62434), (2120, 60667), (2356, 54590), (2945, 43672), (3193, 40280), (3286, 39140), (3914, 32860), (4028, 31930), (4120, 31217), (4712, 27295), (5035, 25544), (5459, 23560), (5890, 21836), (6386, 20140), (6572, 19570), (7828, 16430), (8056, 15965), (8215, 15656), (9785, 13144), (10070, 12772), (10918, 11780)]