20565450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 72

約数和(自身を含む): 57683808

約数和(自身を除く): 37118358

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 45, 46, 50, 69, 75, 90, 115, 138, 150, 207, 225, 230, 345, 414, 450, 575, 690, 1035, 1150, 1725, 1987, 2070, 3450, 3974, 5175, 5961, 9935, 10350, 11922, 17883, 19870, 29805, 35766, 45701, 49675, 59610, 89415, 91402, 99350, 137103, 149025, 178830, 228505, 274206, 298050, 411309, 447075, 457010, 685515, 822618, 894150, 1142525, 1371030, 2056545, 2285050, 3427575, 4113090, 6855150, 10282725, 20565450]

約数ペア:

[(1, 20565450), (2, 10282725), (3, 6855150), (5, 4113090), (6, 3427575), (9, 2285050), (10, 2056545), (15, 1371030), (18, 1142525), (23, 894150), (25, 822618), (30, 685515), (45, 457010), (46, 447075), (50, 411309), (69, 298050), (75, 274206), (90, 228505), (115, 178830), (138, 149025), (150, 137103), (207, 99350), (225, 91402), (230, 89415), (345, 59610), (414, 49675), (450, 45701), (575, 35766), (690, 29805), (1035, 19870), (1150, 17883), (1725, 11922), (1987, 10350), (2070, 9935), (3450, 5961), (3974, 5175)]