68985860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 148925952

約数和(自身を除く): 79940092

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 151, 212, 265, 302, 431, 530, 604, 755, 862, 1060, 1510, 1724, 2155, 3020, 4310, 8003, 8620, 16006, 22843, 32012, 40015, 45686, 65081, 80030, 91372, 114215, 130162, 160060, 228430, 260324, 325405, 456860, 650810, 1301620, 3449293, 6898586, 13797172, 17246465, 34492930, 68985860]

約数ペア:

[(1, 68985860), (2, 34492930), (4, 17246465), (5, 13797172), (10, 6898586), (20, 3449293), (53, 1301620), (106, 650810), (151, 456860), (212, 325405), (265, 260324), (302, 228430), (431, 160060), (530, 130162), (604, 114215), (755, 91372), (862, 80030), (1060, 65081), (1510, 45686), (1724, 40015), (2155, 32012), (3020, 22843), (4310, 16006), (8003, 8620)]