77995540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3739}}^1$

素因数の和:3904

約数の個数: 48

約数和(自身を含む): 188496000

約数和(自身を除く): 110500460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 3739, 4172, 5215, 7478, 10430, 14956, 18695, 20860, 26173, 37390, 52346, 74780, 104692, 130865, 261730, 523460, 557111, 1114222, 2228444, 2785555, 3899777, 5571110, 7799554, 11142220, 15599108, 19498885, 38997770, 77995540]

約数ペア:

[(1, 77995540), (2, 38997770), (4, 19498885), (5, 15599108), (7, 11142220), (10, 7799554), (14, 5571110), (20, 3899777), (28, 2785555), (35, 2228444), (70, 1114222), (140, 557111), (149, 523460), (298, 261730), (596, 130865), (745, 104692), (1043, 74780), (1490, 52346), (2086, 37390), (2980, 26173), (3739, 20860), (4172, 18695), (5215, 14956), (7478, 10430)]