18980010

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:708

約数の個数: 96

約数和(自身を含む): 57687552

約数和(自身を除く): 38707542

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 47, 63, 70, 90, 94, 105, 126, 141, 210, 235, 282, 315, 329, 423, 470, 630, 641, 658, 705, 846, 987, 1282, 1410, 1645, 1923, 1974, 2115, 2961, 3205, 3290, 3846, 4230, 4487, 4935, 5769, 5922, 6410, 8974, 9615, 9870, 11538, 13461, 14805, 19230, 22435, 26922, 28845, 29610, 30127, 40383, 44870, 57690, 60254, 67305, 80766, 90381, 134610, 150635, 180762, 201915, 210889, 271143, 301270, 403830, 421778, 451905, 542286, 632667, 903810, 1054445, 1265334, 1355715, 1898001, 2108890, 2711430, 3163335, 3796002, 6326670, 9490005, 18980010]

約数ペア:

[(1, 18980010), (2, 9490005), (3, 6326670), (5, 3796002), (6, 3163335), (7, 2711430), (9, 2108890), (10, 1898001), (14, 1355715), (15, 1265334), (18, 1054445), (21, 903810), (30, 632667), (35, 542286), (42, 451905), (45, 421778), (47, 403830), (63, 301270), (70, 271143), (90, 210889), (94, 201915), (105, 180762), (126, 150635), (141, 134610), (210, 90381), (235, 80766), (282, 67305), (315, 60254), (329, 57690), (423, 44870), (470, 40383), (630, 30127), (641, 29610), (658, 28845), (705, 26922), (846, 22435), (987, 19230), (1282, 14805), (1410, 13461), (1645, 11538), (1923, 9870), (1974, 9615), (2115, 8974), (2961, 6410), (3205, 5922), (3290, 5769), (3846, 4935), (4230, 4487)]