78471740

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 168766752

約数和(自身を除く): 90295012

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 157, 268, 314, 335, 373, 628, 670, 746, 785, 1340, 1492, 1570, 1865, 3140, 3730, 7460, 10519, 21038, 24991, 42076, 49982, 52595, 58561, 99964, 105190, 117122, 124955, 210380, 234244, 249910, 292805, 499820, 585610, 1171220, 3923587, 7847174, 15694348, 19617935, 39235870, 78471740]

約数ペア:

[(1, 78471740), (2, 39235870), (4, 19617935), (5, 15694348), (10, 7847174), (20, 3923587), (67, 1171220), (134, 585610), (157, 499820), (268, 292805), (314, 249910), (335, 234244), (373, 210380), (628, 124955), (670, 117122), (746, 105190), (785, 99964), (1340, 58561), (1492, 52595), (1570, 49982), (1865, 42076), (3140, 24991), (3730, 21038), (7460, 10519)]