640463640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{3221}}^1$

素因数の和:4892

約数の個数: 64

約数和(自身を含む): 1923147360

約数和(自身を除く): 1282683720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1657, 3221, 3314, 4971, 6442, 6628, 8285, 9663, 9942, 12884, 13256, 16105, 16570, 19326, 19884, 24855, 25768, 32210, 33140, 38652, 39768, 48315, 49710, 64420, 66280, 77304, 96630, 99420, 128840, 193260, 198840, 386520, 5337197, 10674394, 16011591, 21348788, 26685985, 32023182, 42697576, 53371970, 64046364, 80057955, 106743940, 128092728, 160115910, 213487880, 320231820, 640463640]

約数ペア:

[(1, 640463640), (2, 320231820), (3, 213487880), (4, 160115910), (5, 128092728), (6, 106743940), (8, 80057955), (10, 64046364), (12, 53371970), (15, 42697576), (20, 32023182), (24, 26685985), (30, 21348788), (40, 16011591), (60, 10674394), (120, 5337197), (1657, 386520), (3221, 198840), (3314, 193260), (4971, 128840), (6442, 99420), (6628, 96630), (8285, 77304), (9663, 66280), (9942, 64420), (12884, 49710), (13256, 48315), (16105, 39768), (16570, 38652), (19326, 33140), (19884, 32210), (24855, 25768)]