217425780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8447}}^1$

素因数の和:8486

約数の個数: 144

約数和(自身を含む): 774918144

約数和(自身を除く): 557492364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1287, 1430, 1716, 1980, 2145, 2340, 2574, 2860, 4290, 5148, 6435, 8447, 8580, 12870, 16894, 25341, 25740, 33788, 42235, 50682, 76023, 84470, 92917, 101364, 109811, 126705, 152046, 168940, 185834, 219622, 253410, 278751, 304092, 329433, 371668, 380115, 439244, 464585, 506820, 549055, 557502, 658866, 760230, 836253, 929170, 988299, 1098110, 1115004, 1207921, 1317732, 1393755, 1520460, 1647165, 1672506, 1858340, 1976598, 2196220, 2415842, 2787510, 3294330, 3345012, 3623763, 3953196, 4181265, 4831684, 4941495, 5575020, 6039605, 6588660, 7247526, 8362530, 9882990, 10871289, 12079210, 14495052, 16725060, 18118815, 19765980, 21742578, 24158420, 36237630, 43485156, 54356445, 72475260, 108712890, 217425780]

約数ペア:

[(1, 217425780), (2, 108712890), (3, 72475260), (4, 54356445), (5, 43485156), (6, 36237630), (9, 24158420), (10, 21742578), (11, 19765980), (12, 18118815), (13, 16725060), (15, 14495052), (18, 12079210), (20, 10871289), (22, 9882990), (26, 8362530), (30, 7247526), (33, 6588660), (36, 6039605), (39, 5575020), (44, 4941495), (45, 4831684), (52, 4181265), (55, 3953196), (60, 3623763), (65, 3345012), (66, 3294330), (78, 2787510), (90, 2415842), (99, 2196220), (110, 1976598), (117, 1858340), (130, 1672506), (132, 1647165), (143, 1520460), (156, 1393755), (165, 1317732), (180, 1207921), (195, 1115004), (198, 1098110), (220, 988299), (234, 929170), (260, 836253), (286, 760230), (330, 658866), (390, 557502), (396, 549055), (429, 506820), (468, 464585), (495, 439244), (572, 380115), (585, 371668), (660, 329433), (715, 304092), (780, 278751), (858, 253410), (990, 219622), (1170, 185834), (1287, 168940), (1430, 152046), (1716, 126705), (1980, 109811), (2145, 101364), (2340, 92917), (2574, 84470), (2860, 76023), (4290, 50682), (5148, 42235), (6435, 33788), (8447, 25740), (8580, 25341), (12870, 16894)]