28810530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 89631360

約数和(自身を除く): 60820830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 47, 49, 63, 70, 90, 94, 98, 105, 126, 139, 141, 147, 210, 235, 245, 278, 282, 294, 315, 329, 417, 423, 441, 470, 490, 630, 658, 695, 705, 735, 834, 846, 882, 973, 987, 1251, 1390, 1410, 1470, 1645, 1946, 1974, 2085, 2115, 2205, 2303, 2502, 2919, 2961, 3290, 4170, 4230, 4410, 4606, 4865, 4935, 5838, 5922, 6255, 6533, 6811, 6909, 8757, 9730, 9870, 11515, 12510, 13066, 13622, 13818, 14595, 14805, 17514, 19599, 20433, 20727, 23030, 29190, 29610, 32665, 34055, 34545, 39198, 40866, 41454, 43785, 45731, 58797, 61299, 65330, 68110, 69090, 87570, 91462, 97995, 102165, 103635, 117594, 122598, 137193, 195990, 204330, 207270, 228655, 274386, 293985, 306495, 320117, 411579, 457310, 587970, 612990, 640234, 685965, 823158, 960351, 1371930, 1600585, 1920702, 2057895, 2881053, 3201170, 4115790, 4801755, 5762106, 9603510, 14405265, 28810530]

約数ペア:

[(1, 28810530), (2, 14405265), (3, 9603510), (5, 5762106), (6, 4801755), (7, 4115790), (9, 3201170), (10, 2881053), (14, 2057895), (15, 1920702), (18, 1600585), (21, 1371930), (30, 960351), (35, 823158), (42, 685965), (45, 640234), (47, 612990), (49, 587970), (63, 457310), (70, 411579), (90, 320117), (94, 306495), (98, 293985), (105, 274386), (126, 228655), (139, 207270), (141, 204330), (147, 195990), (210, 137193), (235, 122598), (245, 117594), (278, 103635), (282, 102165), (294, 97995), (315, 91462), (329, 87570), (417, 69090), (423, 68110), (441, 65330), (470, 61299), (490, 58797), (630, 45731), (658, 43785), (695, 41454), (705, 40866), (735, 39198), (834, 34545), (846, 34055), (882, 32665), (973, 29610), (987, 29190), (1251, 23030), (1390, 20727), (1410, 20433), (1470, 19599), (1645, 17514), (1946, 14805), (1974, 14595), (2085, 13818), (2115, 13622), (2205, 13066), (2303, 12510), (2502, 11515), (2919, 9870), (2961, 9730), (3290, 8757), (4170, 6909), (4230, 6811), (4410, 6533), (4606, 6255), (4865, 5922), (4935, 5838)]