2051207960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{3671}}^1$

素因数の和:3972

約数の個数: 64

約数和(自身を含む): 4712644800

約数和(自身を除く): 2661436840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 229, 244, 305, 458, 488, 610, 916, 1145, 1220, 1832, 2290, 2440, 3671, 4580, 7342, 9160, 13969, 14684, 18355, 27938, 29368, 36710, 55876, 69845, 73420, 111752, 139690, 146840, 223931, 279380, 447862, 558760, 840659, 895724, 1119655, 1681318, 1791448, 2239310, 3362636, 4203295, 4478620, 6725272, 8406590, 8957240, 16813180, 33626360, 51280199, 102560398, 205120796, 256400995, 410241592, 512801990, 1025603980, 2051207960]

約数ペア:

[(1, 2051207960), (2, 1025603980), (4, 512801990), (5, 410241592), (8, 256400995), (10, 205120796), (20, 102560398), (40, 51280199), (61, 33626360), (122, 16813180), (229, 8957240), (244, 8406590), (305, 6725272), (458, 4478620), (488, 4203295), (610, 3362636), (916, 2239310), (1145, 1791448), (1220, 1681318), (1832, 1119655), (2290, 895724), (2440, 840659), (3671, 558760), (4580, 447862), (7342, 279380), (9160, 223931), (13969, 146840), (14684, 139690), (18355, 111752), (27938, 73420), (29368, 69845), (36710, 55876)]