71123220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1201}}^1$

素因数の和:1270

約数の個数: 144

約数和(自身を含む): 252016128

約数和(自身を除く): 180892908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 60, 63, 70, 84, 90, 94, 105, 126, 140, 141, 180, 188, 210, 235, 252, 282, 315, 329, 420, 423, 470, 564, 630, 658, 705, 846, 940, 987, 1201, 1260, 1316, 1410, 1645, 1692, 1974, 2115, 2402, 2820, 2961, 3290, 3603, 3948, 4230, 4804, 4935, 5922, 6005, 6580, 7206, 8407, 8460, 9870, 10809, 11844, 12010, 14412, 14805, 16814, 18015, 19740, 21618, 24020, 25221, 29610, 33628, 36030, 42035, 43236, 50442, 54045, 56447, 59220, 72060, 75663, 84070, 100884, 108090, 112894, 126105, 151326, 168140, 169341, 216180, 225788, 252210, 282235, 302652, 338682, 378315, 395129, 504420, 508023, 564470, 677364, 756630, 790258, 846705, 1016046, 1128940, 1185387, 1513260, 1580516, 1693410, 1975645, 2032092, 2370774, 2540115, 3386820, 3556161, 3951290, 4741548, 5080230, 5926935, 7112322, 7902580, 10160460, 11853870, 14224644, 17780805, 23707740, 35561610, 71123220]

約数ペア:

[(1, 71123220), (2, 35561610), (3, 23707740), (4, 17780805), (5, 14224644), (6, 11853870), (7, 10160460), (9, 7902580), (10, 7112322), (12, 5926935), (14, 5080230), (15, 4741548), (18, 3951290), (20, 3556161), (21, 3386820), (28, 2540115), (30, 2370774), (35, 2032092), (36, 1975645), (42, 1693410), (45, 1580516), (47, 1513260), (60, 1185387), (63, 1128940), (70, 1016046), (84, 846705), (90, 790258), (94, 756630), (105, 677364), (126, 564470), (140, 508023), (141, 504420), (180, 395129), (188, 378315), (210, 338682), (235, 302652), (252, 282235), (282, 252210), (315, 225788), (329, 216180), (420, 169341), (423, 168140), (470, 151326), (564, 126105), (630, 112894), (658, 108090), (705, 100884), (846, 84070), (940, 75663), (987, 72060), (1201, 59220), (1260, 56447), (1316, 54045), (1410, 50442), (1645, 43236), (1692, 42035), (1974, 36030), (2115, 33628), (2402, 29610), (2820, 25221), (2961, 24020), (3290, 21618), (3603, 19740), (3948, 18015), (4230, 16814), (4804, 14805), (4935, 14412), (5922, 12010), (6005, 11844), (6580, 10809), (7206, 9870), (8407, 8460)]