21430680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{659}}^1$

素因数の和:944

約数の個数: 64

約数和(自身を含む): 64627200

約数和(自身を除く): 43196520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 659, 813, 1084, 1318, 1355, 1626, 1977, 2168, 2636, 2710, 3252, 3295, 3954, 4065, 5272, 5420, 6504, 6590, 7908, 8130, 9885, 10840, 13180, 15816, 16260, 19770, 26360, 32520, 39540, 79080, 178589, 357178, 535767, 714356, 892945, 1071534, 1428712, 1785890, 2143068, 2678835, 3571780, 4286136, 5357670, 7143560, 10715340, 21430680]

約数ペア:

[(1, 21430680), (2, 10715340), (3, 7143560), (4, 5357670), (5, 4286136), (6, 3571780), (8, 2678835), (10, 2143068), (12, 1785890), (15, 1428712), (20, 1071534), (24, 892945), (30, 714356), (40, 535767), (60, 357178), (120, 178589), (271, 79080), (542, 39540), (659, 32520), (813, 26360), (1084, 19770), (1318, 16260), (1355, 15816), (1626, 13180), (1977, 10840), (2168, 9885), (2636, 8130), (2710, 7908), (3252, 6590), (3295, 6504), (3954, 5420), (4065, 5272)]