20190492020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{77471}}^1$

素因数の和:77720

約数の個数: 48

約数和(自身を含む): 43184752128

約数和(自身を除く): 22994260108

約数列:

[1, 2, 4, 5, 10, 20, 83, 157, 166, 314, 332, 415, 628, 785, 830, 1570, 1660, 3140, 13031, 26062, 52124, 65155, 77471, 130310, 154942, 260620, 309884, 387355, 774710, 1549420, 6430093, 12162947, 12860186, 24325894, 25720372, 32150465, 48651788, 60814735, 64300930, 121629470, 128601860, 243258940, 1009524601, 2019049202, 4038098404, 5047623005, 10095246010, 20190492020]

約数ペア:

[(1, 20190492020), (2, 10095246010), (4, 5047623005), (5, 4038098404), (10, 2019049202), (20, 1009524601), (83, 243258940), (157, 128601860), (166, 121629470), (314, 64300930), (332, 60814735), (415, 48651788), (628, 32150465), (785, 25720372), (830, 24325894), (1570, 12860186), (1660, 12162947), (3140, 6430093), (13031, 1549420), (26062, 774710), (52124, 387355), (65155, 309884), (77471, 260620), (130310, 154942)]