64957460

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 139708800

約数和(自身を除く): 74751340

約数列:

[1, 2, 4, 5, 10, 20, 83, 109, 166, 218, 332, 359, 415, 436, 545, 718, 830, 1090, 1436, 1660, 1795, 2180, 3590, 7180, 9047, 18094, 29797, 36188, 39131, 45235, 59594, 78262, 90470, 119188, 148985, 156524, 180940, 195655, 297970, 391310, 595940, 782620, 3247873, 6495746, 12991492, 16239365, 32478730, 64957460]

約数ペア:

[(1, 64957460), (2, 32478730), (4, 16239365), (5, 12991492), (10, 6495746), (20, 3247873), (83, 782620), (109, 595940), (166, 391310), (218, 297970), (332, 195655), (359, 180940), (415, 156524), (436, 148985), (545, 119188), (718, 90470), (830, 78262), (1090, 59594), (1436, 45235), (1660, 39131), (1795, 36188), (2180, 29797), (3590, 18094), (7180, 9047)]