72451960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 204042240

約数和(自身を除く): 131590280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 280, 310, 340, 434, 476, 491, 527, 595, 620, 680, 868, 952, 982, 1054, 1085, 1190, 1240, 1736, 1964, 2108, 2170, 2380, 2455, 2635, 3437, 3689, 3928, 4216, 4340, 4760, 4910, 5270, 6874, 7378, 8347, 8680, 9820, 10540, 13748, 14756, 15221, 16694, 17185, 18445, 19640, 21080, 27496, 29512, 30442, 33388, 34370, 36890, 41735, 58429, 60884, 66776, 68740, 73780, 76105, 83470, 106547, 116858, 121768, 137480, 147560, 152210, 166940, 213094, 233716, 258757, 292145, 304420, 333880, 426188, 467432, 517514, 532735, 584290, 608840, 852376, 1035028, 1065470, 1168580, 1293785, 1811299, 2070056, 2130940, 2337160, 2587570, 3622598, 4261880, 5175140, 7245196, 9056495, 10350280, 14490392, 18112990, 36225980, 72451960]

約数ペア:

[(1, 72451960), (2, 36225980), (4, 18112990), (5, 14490392), (7, 10350280), (8, 9056495), (10, 7245196), (14, 5175140), (17, 4261880), (20, 3622598), (28, 2587570), (31, 2337160), (34, 2130940), (35, 2070056), (40, 1811299), (56, 1293785), (62, 1168580), (68, 1065470), (70, 1035028), (85, 852376), (119, 608840), (124, 584290), (136, 532735), (140, 517514), (155, 467432), (170, 426188), (217, 333880), (238, 304420), (248, 292145), (280, 258757), (310, 233716), (340, 213094), (434, 166940), (476, 152210), (491, 147560), (527, 137480), (595, 121768), (620, 116858), (680, 106547), (868, 83470), (952, 76105), (982, 73780), (1054, 68740), (1085, 66776), (1190, 60884), (1240, 58429), (1736, 41735), (1964, 36890), (2108, 34370), (2170, 33388), (2380, 30442), (2455, 29512), (2635, 27496), (3437, 21080), (3689, 19640), (3928, 18445), (4216, 17185), (4340, 16694), (4760, 15221), (4910, 14756), (5270, 13748), (6874, 10540), (7378, 9820), (8347, 8680)]