1880521580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:520

約数の個数: 192

約数和(自身を含む): 4992261120

約数和(自身を除く): 3111739540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 43, 70, 76, 82, 86, 95, 133, 140, 164, 172, 190, 205, 215, 266, 287, 301, 380, 401, 410, 430, 532, 574, 602, 665, 779, 802, 817, 820, 860, 1148, 1204, 1330, 1435, 1505, 1558, 1604, 1634, 1763, 2005, 2660, 2807, 2870, 3010, 3116, 3268, 3526, 3895, 4010, 4085, 5453, 5614, 5719, 5740, 6020, 7052, 7619, 7790, 8020, 8170, 8815, 10906, 11228, 11438, 12341, 14035, 15238, 15580, 16340, 16441, 17243, 17630, 21812, 22876, 24682, 27265, 28070, 28595, 30476, 32882, 33497, 34486, 35260, 38095, 49364, 53333, 54530, 56140, 57190, 61705, 65764, 66994, 68972, 76190, 82205, 86215, 106666, 109060, 114380, 115087, 120701, 123410, 133988, 152380, 164410, 167485, 172430, 213332, 230174, 234479, 241402, 246820, 266665, 312379, 327617, 328820, 334970, 344860, 460348, 468958, 482804, 533330, 575435, 603505, 624758, 655234, 669940, 706963, 937916, 1066660, 1150870, 1172395, 1207010, 1249516, 1310468, 1413926, 1561895, 1638085, 2186653, 2293319, 2301740, 2344790, 2414020, 2827852, 3123790, 3276170, 3534815, 4373306, 4586638, 4689580, 4948741, 6247580, 6552340, 7069630, 8746612, 9173276, 9897482, 10933265, 11466595, 13432297, 14139260, 19794964, 21866530, 22933190, 24743705, 26864594, 43733060, 45866380, 49487410, 53729188, 67161485, 94026079, 98974820, 134322970, 188052158, 268645940, 376104316, 470130395, 940260790, 1880521580]

約数ペア:

[(1, 1880521580), (2, 940260790), (4, 470130395), (5, 376104316), (7, 268645940), (10, 188052158), (14, 134322970), (19, 98974820), (20, 94026079), (28, 67161485), (35, 53729188), (38, 49487410), (41, 45866380), (43, 43733060), (70, 26864594), (76, 24743705), (82, 22933190), (86, 21866530), (95, 19794964), (133, 14139260), (140, 13432297), (164, 11466595), (172, 10933265), (190, 9897482), (205, 9173276), (215, 8746612), (266, 7069630), (287, 6552340), (301, 6247580), (380, 4948741), (401, 4689580), (410, 4586638), (430, 4373306), (532, 3534815), (574, 3276170), (602, 3123790), (665, 2827852), (779, 2414020), (802, 2344790), (817, 2301740), (820, 2293319), (860, 2186653), (1148, 1638085), (1204, 1561895), (1330, 1413926), (1435, 1310468), (1505, 1249516), (1558, 1207010), (1604, 1172395), (1634, 1150870), (1763, 1066660), (2005, 937916), (2660, 706963), (2807, 669940), (2870, 655234), (3010, 624758), (3116, 603505), (3268, 575435), (3526, 533330), (3895, 482804), (4010, 468958), (4085, 460348), (5453, 344860), (5614, 334970), (5719, 328820), (5740, 327617), (6020, 312379), (7052, 266665), (7619, 246820), (7790, 241402), (8020, 234479), (8170, 230174), (8815, 213332), (10906, 172430), (11228, 167485), (11438, 164410), (12341, 152380), (14035, 133988), (15238, 123410), (15580, 120701), (16340, 115087), (16441, 114380), (17243, 109060), (17630, 106666), (21812, 86215), (22876, 82205), (24682, 76190), (27265, 68972), (28070, 66994), (28595, 65764), (30476, 61705), (32882, 57190), (33497, 56140), (34486, 54530), (35260, 53333), (38095, 49364)]