90911960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:181

約数の個数: 128

約数和(自身を含む): 229003200

約数和(自身を除く): 138091240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 53, 61, 74, 76, 95, 106, 122, 148, 152, 185, 190, 212, 244, 265, 296, 305, 370, 380, 424, 488, 530, 610, 703, 740, 760, 1007, 1060, 1159, 1220, 1406, 1480, 1961, 2014, 2120, 2257, 2318, 2440, 2812, 3233, 3515, 3922, 4028, 4514, 4636, 5035, 5624, 5795, 6466, 7030, 7844, 8056, 9028, 9272, 9805, 10070, 11285, 11590, 12932, 14060, 15688, 16165, 18056, 19610, 20140, 22570, 23180, 25864, 28120, 32330, 37259, 39220, 40280, 42883, 45140, 46360, 61427, 64660, 74518, 78440, 85766, 90280, 119621, 122854, 129320, 149036, 171532, 186295, 214415, 239242, 245708, 298072, 307135, 343064, 372590, 428830, 478484, 491416, 598105, 614270, 745180, 857660, 956968, 1196210, 1228540, 1490360, 1715320, 2272799, 2392420, 2457080, 4545598, 4784840, 9091196, 11363995, 18182392, 22727990, 45455980, 90911960]

約数ペア:

[(1, 90911960), (2, 45455980), (4, 22727990), (5, 18182392), (8, 11363995), (10, 9091196), (19, 4784840), (20, 4545598), (37, 2457080), (38, 2392420), (40, 2272799), (53, 1715320), (61, 1490360), (74, 1228540), (76, 1196210), (95, 956968), (106, 857660), (122, 745180), (148, 614270), (152, 598105), (185, 491416), (190, 478484), (212, 428830), (244, 372590), (265, 343064), (296, 307135), (305, 298072), (370, 245708), (380, 239242), (424, 214415), (488, 186295), (530, 171532), (610, 149036), (703, 129320), (740, 122854), (760, 119621), (1007, 90280), (1060, 85766), (1159, 78440), (1220, 74518), (1406, 64660), (1480, 61427), (1961, 46360), (2014, 45140), (2120, 42883), (2257, 40280), (2318, 39220), (2440, 37259), (2812, 32330), (3233, 28120), (3515, 25864), (3922, 23180), (4028, 22570), (4514, 20140), (4636, 19610), (5035, 18056), (5624, 16165), (5795, 15688), (6466, 14060), (7030, 12932), (7844, 11590), (8056, 11285), (9028, 10070), (9272, 9805)]