21779435540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{877}}^1\times {\mathrm{53987}}^1$

素因数の和:54896

約数の個数: 48

約数和(自身を含む): 47780675712

約数和(自身を除く): 26001240172

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 877, 1754, 3508, 4385, 8770, 17540, 20171, 40342, 53987, 80684, 100855, 107974, 201710, 215948, 269935, 403420, 539870, 1079740, 1241701, 2483402, 4966804, 6208505, 12417010, 24834020, 47346599, 94693198, 189386396, 236732995, 473465990, 946931980, 1088971777, 2177943554, 4355887108, 5444858885, 10889717770, 21779435540]

約数ペア:

[(1, 21779435540), (2, 10889717770), (4, 5444858885), (5, 4355887108), (10, 2177943554), (20, 1088971777), (23, 946931980), (46, 473465990), (92, 236732995), (115, 189386396), (230, 94693198), (460, 47346599), (877, 24834020), (1754, 12417010), (3508, 6208505), (4385, 4966804), (8770, 2483402), (17540, 1241701), (20171, 1079740), (40342, 539870), (53987, 403420), (80684, 269935), (100855, 215948), (107974, 201710)]