2080645060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{419}}^1$

素因数の和:781

約数の個数: 96

約数和(自身を含む): 4800902400

約数和(自身を除く): 2720257340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 269, 284, 355, 419, 538, 710, 838, 923, 1076, 1345, 1420, 1676, 1846, 2095, 2690, 3497, 3692, 4190, 4615, 5380, 5447, 6994, 8380, 9230, 10894, 13988, 17485, 18460, 19099, 21788, 27235, 29749, 34970, 38198, 54470, 59498, 69940, 76396, 95495, 108940, 112711, 118996, 148745, 190990, 225422, 248287, 297490, 381980, 386737, 450844, 496574, 563555, 594980, 773474, 993148, 1127110, 1241435, 1465243, 1546948, 1933685, 2254220, 2482870, 2930486, 3867370, 4965740, 5860972, 7326215, 7734740, 8002481, 14652430, 16004962, 29304860, 32009924, 40012405, 80024810, 104032253, 160049620, 208064506, 416129012, 520161265, 1040322530, 2080645060]

約数ペア:

[(1, 2080645060), (2, 1040322530), (4, 520161265), (5, 416129012), (10, 208064506), (13, 160049620), (20, 104032253), (26, 80024810), (52, 40012405), (65, 32009924), (71, 29304860), (130, 16004962), (142, 14652430), (260, 8002481), (269, 7734740), (284, 7326215), (355, 5860972), (419, 4965740), (538, 3867370), (710, 2930486), (838, 2482870), (923, 2254220), (1076, 1933685), (1345, 1546948), (1420, 1465243), (1676, 1241435), (1846, 1127110), (2095, 993148), (2690, 773474), (3497, 594980), (3692, 563555), (4190, 496574), (4615, 450844), (5380, 386737), (5447, 381980), (6994, 297490), (8380, 248287), (9230, 225422), (10894, 190990), (13988, 148745), (17485, 118996), (18460, 112711), (19099, 108940), (21788, 95495), (27235, 76396), (29749, 69940), (34970, 59498), (38198, 54470)]