40784900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 96426120

約数和(自身を除く): 55641220

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 137, 229, 260, 274, 325, 458, 548, 650, 685, 916, 1145, 1300, 1370, 1781, 2290, 2740, 2977, 3425, 3562, 4580, 5725, 5954, 6850, 7124, 8905, 11450, 11908, 13700, 14885, 17810, 22900, 29770, 31373, 35620, 44525, 59540, 62746, 74425, 89050, 125492, 148850, 156865, 178100, 297700, 313730, 407849, 627460, 784325, 815698, 1568650, 1631396, 2039245, 3137300, 4078490, 8156980, 10196225, 20392450, 40784900]

約数ペア:

[(1, 40784900), (2, 20392450), (4, 10196225), (5, 8156980), (10, 4078490), (13, 3137300), (20, 2039245), (25, 1631396), (26, 1568650), (50, 815698), (52, 784325), (65, 627460), (100, 407849), (130, 313730), (137, 297700), (229, 178100), (260, 156865), (274, 148850), (325, 125492), (458, 89050), (548, 74425), (650, 62746), (685, 59540), (916, 44525), (1145, 35620), (1300, 31373), (1370, 29770), (1781, 22900), (2290, 17810), (2740, 14885), (2977, 13700), (3425, 11908), (3562, 11450), (4580, 8905), (5725, 7124), (5954, 6850)]