201221800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:623

約数の個数: 96

約数和(自身を含む): 507701880

約数和(自身を除く): 306480080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 193, 200, 260, 325, 386, 401, 520, 650, 772, 802, 965, 1300, 1544, 1604, 1930, 2005, 2509, 2600, 3208, 3860, 4010, 4825, 5018, 5213, 7720, 8020, 9650, 10025, 10036, 10426, 12545, 16040, 19300, 20050, 20072, 20852, 25090, 26065, 38600, 40100, 41704, 50180, 52130, 62725, 77393, 80200, 100360, 104260, 125450, 130325, 154786, 208520, 250900, 260650, 309572, 386965, 501800, 521300, 619144, 773930, 1006109, 1042600, 1547860, 1934825, 2012218, 3095720, 3869650, 4024436, 5030545, 7739300, 8048872, 10061090, 15478600, 20122180, 25152725, 40244360, 50305450, 100610900, 201221800]

約数ペア:

[(1, 201221800), (2, 100610900), (4, 50305450), (5, 40244360), (8, 25152725), (10, 20122180), (13, 15478600), (20, 10061090), (25, 8048872), (26, 7739300), (40, 5030545), (50, 4024436), (52, 3869650), (65, 3095720), (100, 2012218), (104, 1934825), (130, 1547860), (193, 1042600), (200, 1006109), (260, 773930), (325, 619144), (386, 521300), (401, 501800), (520, 386965), (650, 309572), (772, 260650), (802, 250900), (965, 208520), (1300, 154786), (1544, 130325), (1604, 125450), (1930, 104260), (2005, 100360), (2509, 80200), (2600, 77393), (3208, 62725), (3860, 52130), (4010, 50180), (4825, 41704), (5018, 40100), (5213, 38600), (7720, 26065), (8020, 25090), (9650, 20852), (10025, 20072), (10036, 20050), (10426, 19300), (12545, 16040)]