20891130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 128

約数和(自身を含む): 60092928

約数和(自身を除く): 39201798

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 23, 26, 30, 34, 39, 46, 51, 65, 69, 78, 85, 102, 115, 130, 137, 138, 170, 195, 221, 230, 255, 274, 299, 345, 390, 391, 411, 442, 510, 598, 663, 685, 690, 782, 822, 897, 1105, 1173, 1326, 1370, 1495, 1781, 1794, 1955, 2055, 2210, 2329, 2346, 2990, 3151, 3315, 3562, 3910, 4110, 4485, 4658, 5083, 5343, 5865, 6302, 6630, 6987, 8905, 8970, 9453, 10166, 10686, 11645, 11730, 13974, 15249, 15755, 17810, 18906, 23290, 25415, 26715, 30277, 30498, 31510, 34935, 40963, 47265, 50830, 53430, 53567, 60554, 69870, 76245, 81926, 90831, 94530, 107134, 122889, 151385, 152490, 160701, 181662, 204815, 245778, 267835, 302770, 321402, 409630, 454155, 535670, 614445, 696371, 803505, 908310, 1228890, 1392742, 1607010, 2089113, 3481855, 4178226, 6963710, 10445565, 20891130]

約数ペア:

[(1, 20891130), (2, 10445565), (3, 6963710), (5, 4178226), (6, 3481855), (10, 2089113), (13, 1607010), (15, 1392742), (17, 1228890), (23, 908310), (26, 803505), (30, 696371), (34, 614445), (39, 535670), (46, 454155), (51, 409630), (65, 321402), (69, 302770), (78, 267835), (85, 245778), (102, 204815), (115, 181662), (130, 160701), (137, 152490), (138, 151385), (170, 122889), (195, 107134), (221, 94530), (230, 90831), (255, 81926), (274, 76245), (299, 69870), (345, 60554), (390, 53567), (391, 53430), (411, 50830), (442, 47265), (510, 40963), (598, 34935), (663, 31510), (685, 30498), (690, 30277), (782, 26715), (822, 25415), (897, 23290), (1105, 18906), (1173, 17810), (1326, 15755), (1370, 15249), (1495, 13974), (1781, 11730), (1794, 11645), (1955, 10686), (2055, 10166), (2210, 9453), (2329, 8970), (2346, 8905), (2990, 6987), (3151, 6630), (3315, 6302), (3562, 5865), (3910, 5343), (4110, 5083), (4485, 4658)]