51690640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1097}}^1$

素因数の和:1160

約数の個数: 80

約数和(自身を含む): 130705920

約数和(自身を除く): 79015280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1097, 1178, 1240, 1520, 2194, 2356, 2480, 2945, 4388, 4712, 5485, 5890, 8776, 9424, 10970, 11780, 17552, 20843, 21940, 23560, 34007, 41686, 43880, 47120, 68014, 83372, 87760, 104215, 136028, 166744, 170035, 208430, 272056, 333488, 340070, 416860, 544112, 646133, 680140, 833720, 1292266, 1360280, 1667440, 2584532, 2720560, 3230665, 5169064, 6461330, 10338128, 12922660, 25845320, 51690640]

約数ペア:

[(1, 51690640), (2, 25845320), (4, 12922660), (5, 10338128), (8, 6461330), (10, 5169064), (16, 3230665), (19, 2720560), (20, 2584532), (31, 1667440), (38, 1360280), (40, 1292266), (62, 833720), (76, 680140), (80, 646133), (95, 544112), (124, 416860), (152, 340070), (155, 333488), (190, 272056), (248, 208430), (304, 170035), (310, 166744), (380, 136028), (496, 104215), (589, 87760), (620, 83372), (760, 68014), (1097, 47120), (1178, 43880), (1240, 41686), (1520, 34007), (2194, 23560), (2356, 21940), (2480, 20843), (2945, 17552), (4388, 11780), (4712, 10970), (5485, 9424), (5890, 8776)]