2021301904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 4218480000

約数和(自身を除く): 2197178096

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 107, 136, 199, 214, 272, 349, 398, 428, 698, 796, 856, 1396, 1592, 1712, 1819, 2792, 3184, 3383, 3638, 5584, 5933, 6766, 7276, 11866, 13532, 14552, 21293, 23732, 27064, 29104, 37343, 42586, 47464, 54128, 69451, 74686, 85172, 94928, 138902, 149372, 170344, 277804, 298744, 340688, 361981, 555608, 597488, 634831, 723962, 1111216, 1180667, 1269662, 1447924, 2361334, 2539324, 2895848, 4722668, 5078648, 5791696, 7431257, 9445336, 10157296, 14862514, 18890672, 29725028, 59450056, 118900112, 126331369, 252662738, 505325476, 1010650952, 2021301904]

約数ペア:

[(1, 2021301904), (2, 1010650952), (4, 505325476), (8, 252662738), (16, 126331369), (17, 118900112), (34, 59450056), (68, 29725028), (107, 18890672), (136, 14862514), (199, 10157296), (214, 9445336), (272, 7431257), (349, 5791696), (398, 5078648), (428, 4722668), (698, 2895848), (796, 2539324), (856, 2361334), (1396, 1447924), (1592, 1269662), (1712, 1180667), (1819, 1111216), (2792, 723962), (3184, 634831), (3383, 597488), (3638, 555608), (5584, 361981), (5933, 340688), (6766, 298744), (7276, 277804), (11866, 170344), (13532, 149372), (14552, 138902), (21293, 94928), (23732, 85172), (27064, 74686), (29104, 69451), (37343, 54128), (42586, 47464)]