75781520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 183082032

約数和(自身を除く): 107300512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 61, 80, 106, 122, 212, 244, 265, 293, 305, 424, 488, 530, 586, 610, 848, 976, 1060, 1172, 1220, 1465, 2120, 2344, 2440, 2930, 3233, 4240, 4688, 4880, 5860, 6466, 11720, 12932, 15529, 16165, 17873, 23440, 25864, 31058, 32330, 35746, 51728, 62116, 64660, 71492, 77645, 89365, 124232, 129320, 142984, 155290, 178730, 248464, 258640, 285968, 310580, 357460, 621160, 714920, 947269, 1242320, 1429840, 1894538, 3789076, 4736345, 7578152, 9472690, 15156304, 18945380, 37890760, 75781520]

約数ペア:

[(1, 75781520), (2, 37890760), (4, 18945380), (5, 15156304), (8, 9472690), (10, 7578152), (16, 4736345), (20, 3789076), (40, 1894538), (53, 1429840), (61, 1242320), (80, 947269), (106, 714920), (122, 621160), (212, 357460), (244, 310580), (265, 285968), (293, 258640), (305, 248464), (424, 178730), (488, 155290), (530, 142984), (586, 129320), (610, 124232), (848, 89365), (976, 77645), (1060, 71492), (1172, 64660), (1220, 62116), (1465, 51728), (2120, 35746), (2344, 32330), (2440, 31058), (2930, 25864), (3233, 23440), (4240, 17873), (4688, 16165), (4880, 15529), (5860, 12932), (6466, 11720)]