20246490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 62519040

約数和(自身を除く): 42272550

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 27, 30, 33, 34, 45, 51, 54, 55, 66, 85, 90, 99, 102, 110, 135, 153, 165, 170, 187, 198, 255, 270, 297, 306, 330, 374, 401, 459, 495, 510, 561, 594, 765, 802, 918, 935, 990, 1122, 1203, 1485, 1530, 1683, 1870, 2005, 2295, 2406, 2805, 2970, 3366, 3609, 4010, 4411, 4590, 5049, 5610, 6015, 6817, 7218, 8415, 8822, 10098, 10827, 12030, 13233, 13634, 16830, 18045, 20451, 21654, 22055, 25245, 26466, 34085, 36090, 39699, 40902, 44110, 50490, 54135, 61353, 66165, 68170, 74987, 79398, 102255, 108270, 119097, 122706, 132330, 149974, 184059, 198495, 204510, 224961, 238194, 306765, 368118, 374935, 396990, 449922, 595485, 613530, 674883, 749870, 920295, 1124805, 1190970, 1349766, 1840590, 2024649, 2249610, 3374415, 4049298, 6748830, 10123245, 20246490]

約数ペア:

[(1, 20246490), (2, 10123245), (3, 6748830), (5, 4049298), (6, 3374415), (9, 2249610), (10, 2024649), (11, 1840590), (15, 1349766), (17, 1190970), (18, 1124805), (22, 920295), (27, 749870), (30, 674883), (33, 613530), (34, 595485), (45, 449922), (51, 396990), (54, 374935), (55, 368118), (66, 306765), (85, 238194), (90, 224961), (99, 204510), (102, 198495), (110, 184059), (135, 149974), (153, 132330), (165, 122706), (170, 119097), (187, 108270), (198, 102255), (255, 79398), (270, 74987), (297, 68170), (306, 66165), (330, 61353), (374, 54135), (401, 50490), (459, 44110), (495, 40902), (510, 39699), (561, 36090), (594, 34085), (765, 26466), (802, 25245), (918, 22055), (935, 21654), (990, 20451), (1122, 18045), (1203, 16830), (1485, 13634), (1530, 13233), (1683, 12030), (1870, 10827), (2005, 10098), (2295, 8822), (2406, 8415), (2805, 7218), (2970, 6817), (3366, 6015), (3609, 5610), (4010, 5049), (4411, 4590)]