72781380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1229}}^1$

素因数の和:1298

約数の個数: 144

約数和(自身を含む): 257886720

約数和(自身を除く): 185105340

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, 1229, 1260, 1316, 1410, 1645, 1692, 1974, 2115, 2458, 2820, 2961, 3290, 3687, 3948, 4230, 4916, 4935, 5922, 6145, 6580, 7374, 8460, 8603, 9870, 11061, 11844, 12290, 14748, 14805, 17206, 18435, 19740, 22122, 24580, 25809, 29610, 34412, 36870, 43015, 44244, 51618, 55305, 57763, 59220, 73740, 77427, 86030, 103236, 110610, 115526, 129045, 154854, 172060, 173289, 221220, 231052, 258090, 288815, 309708, 346578, 387135, 404341, 516180, 519867, 577630, 693156, 774270, 808682, 866445, 1039734, 1155260, 1213023, 1548540, 1617364, 1732890, 2021705, 2079468, 2426046, 2599335, 3465780, 3639069, 4043410, 4852092, 5198670, 6065115, 7278138, 8086820, 10397340, 12130230, 14556276, 18195345, 24260460, 36390690, 72781380]

約数ペア:

[(1, 72781380), (2, 36390690), (3, 24260460), (4, 18195345), (5, 14556276), (6, 12130230), (7, 10397340), (9, 8086820), (10, 7278138), (12, 6065115), (14, 5198670), (15, 4852092), (18, 4043410), (20, 3639069), (21, 3465780), (28, 2599335), (30, 2426046), (35, 2079468), (36, 2021705), (42, 1732890), (45, 1617364), (47, 1548540), (60, 1213023), (63, 1155260), (70, 1039734), (84, 866445), (90, 808682), (94, 774270), (105, 693156), (126, 577630), (140, 519867), (141, 516180), (180, 404341), (188, 387135), (210, 346578), (235, 309708), (252, 288815), (282, 258090), (315, 231052), (329, 221220), (420, 173289), (423, 172060), (470, 154854), (564, 129045), (630, 115526), (658, 110610), (705, 103236), (846, 86030), (940, 77427), (987, 73740), (1229, 59220), (1260, 57763), (1316, 55305), (1410, 51618), (1645, 44244), (1692, 43015), (1974, 36870), (2115, 34412), (2458, 29610), (2820, 25809), (2961, 24580), (3290, 22122), (3687, 19740), (3948, 18435), (4230, 17206), (4916, 14805), (4935, 14748), (5922, 12290), (6145, 11844), (6580, 11061), (7374, 9870), (8460, 8603)]