640507608

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{743}}^1$

素因数の和:1078

約数の個数: 128

約数和(自身を含む): 1924876800

約数和(自身を除く): 1284369192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 307, 312, 351, 468, 614, 702, 743, 921, 936, 1228, 1404, 1486, 1842, 2229, 2456, 2763, 2808, 2972, 3684, 3991, 4458, 5526, 5944, 6687, 7368, 7982, 8289, 8916, 9659, 11052, 11973, 13374, 15964, 16578, 17832, 19318, 20061, 22104, 23946, 26748, 28977, 31928, 33156, 35919, 38636, 40122, 47892, 53496, 57954, 66312, 71838, 77272, 80244, 86931, 95784, 107757, 115908, 143676, 160488, 173862, 215514, 228101, 231816, 260793, 287352, 347724, 431028, 456202, 521586, 684303, 695448, 862056, 912404, 1043172, 1368606, 1824808, 2052909, 2086344, 2737212, 2965313, 4105818, 5474424, 5930626, 6158727, 8211636, 8895939, 11861252, 12317454, 16423272, 17791878, 23722504, 24634908, 26687817, 35583756, 49269816, 53375634, 71167512, 80063451, 106751268, 160126902, 213502536, 320253804, 640507608]

約数ペア:

[(1, 640507608), (2, 320253804), (3, 213502536), (4, 160126902), (6, 106751268), (8, 80063451), (9, 71167512), (12, 53375634), (13, 49269816), (18, 35583756), (24, 26687817), (26, 24634908), (27, 23722504), (36, 17791878), (39, 16423272), (52, 12317454), (54, 11861252), (72, 8895939), (78, 8211636), (104, 6158727), (108, 5930626), (117, 5474424), (156, 4105818), (216, 2965313), (234, 2737212), (307, 2086344), (312, 2052909), (351, 1824808), (468, 1368606), (614, 1043172), (702, 912404), (743, 862056), (921, 695448), (936, 684303), (1228, 521586), (1404, 456202), (1486, 431028), (1842, 347724), (2229, 287352), (2456, 260793), (2763, 231816), (2808, 228101), (2972, 215514), (3684, 173862), (3991, 160488), (4458, 143676), (5526, 115908), (5944, 107757), (6687, 95784), (7368, 86931), (7982, 80244), (8289, 77272), (8916, 71838), (9659, 66312), (11052, 57954), (11973, 53496), (13374, 47892), (15964, 40122), (16578, 38636), (17832, 35919), (19318, 33156), (20061, 31928), (22104, 28977), (23946, 26748)]