78318660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1567}}^1$

素因数の和:1610

約数の個数: 144

約数和(自身を含む): 270273024

約数和(自身を除く): 191954364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1567, 1666, 1785, 2380, 2499, 2940, 3134, 3332, 3570, 4165, 4701, 4998, 6268, 7140, 7835, 8330, 9402, 9996, 10969, 12495, 15670, 16660, 18804, 21938, 23505, 24990, 26639, 31340, 32907, 43876, 47010, 49980, 53278, 54845, 65814, 76783, 79917, 94020, 106556, 109690, 131628, 133195, 153566, 159834, 164535, 186473, 219380, 230349, 266390, 307132, 319668, 329070, 372946, 383915, 399585, 460698, 532780, 559419, 658140, 745892, 767830, 799170, 921396, 932365, 1118838, 1151745, 1305311, 1535660, 1598340, 1864730, 2237676, 2303490, 2610622, 2797095, 3729460, 3915933, 4606980, 5221244, 5594190, 6526555, 7831866, 11188380, 13053110, 15663732, 19579665, 26106220, 39159330, 78318660]

約数ペア:

[(1, 78318660), (2, 39159330), (3, 26106220), (4, 19579665), (5, 15663732), (6, 13053110), (7, 11188380), (10, 7831866), (12, 6526555), (14, 5594190), (15, 5221244), (17, 4606980), (20, 3915933), (21, 3729460), (28, 2797095), (30, 2610622), (34, 2303490), (35, 2237676), (42, 1864730), (49, 1598340), (51, 1535660), (60, 1305311), (68, 1151745), (70, 1118838), (84, 932365), (85, 921396), (98, 799170), (102, 767830), (105, 745892), (119, 658140), (140, 559419), (147, 532780), (170, 460698), (196, 399585), (204, 383915), (210, 372946), (238, 329070), (245, 319668), (255, 307132), (294, 266390), (340, 230349), (357, 219380), (420, 186473), (476, 164535), (490, 159834), (510, 153566), (588, 133195), (595, 131628), (714, 109690), (735, 106556), (833, 94020), (980, 79917), (1020, 76783), (1190, 65814), (1428, 54845), (1470, 53278), (1567, 49980), (1666, 47010), (1785, 43876), (2380, 32907), (2499, 31340), (2940, 26639), (3134, 24990), (3332, 23505), (3570, 21938), (4165, 18804), (4701, 16660), (4998, 15670), (6268, 12495), (7140, 10969), (7835, 9996), (8330, 9402)]