7799960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 20347200

約数和(自身を除く): 12547240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 313, 356, 445, 623, 626, 712, 890, 1246, 1252, 1565, 1780, 2191, 2492, 2504, 3115, 3130, 3560, 4382, 4984, 6230, 6260, 8764, 10955, 12460, 12520, 17528, 21910, 24920, 27857, 43820, 55714, 87640, 111428, 139285, 194999, 222856, 278570, 389998, 557140, 779996, 974995, 1114280, 1559992, 1949990, 3899980, 7799960]

約数ペア:

[(1, 7799960), (2, 3899980), (4, 1949990), (5, 1559992), (7, 1114280), (8, 974995), (10, 779996), (14, 557140), (20, 389998), (28, 278570), (35, 222856), (40, 194999), (56, 139285), (70, 111428), (89, 87640), (140, 55714), (178, 43820), (280, 27857), (313, 24920), (356, 21910), (445, 17528), (623, 12520), (626, 12460), (712, 10955), (890, 8764), (1246, 6260), (1252, 6230), (1565, 4984), (1780, 4382), (2191, 3560), (2492, 3130), (2504, 3115)]