91478920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 239500800

約数和(自身を除く): 148021880

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 47, 52, 65, 76, 94, 95, 104, 130, 152, 188, 190, 197, 235, 247, 260, 376, 380, 394, 470, 494, 520, 611, 760, 788, 893, 940, 985, 988, 1222, 1235, 1576, 1786, 1880, 1970, 1976, 2444, 2470, 2561, 3055, 3572, 3743, 3940, 4465, 4888, 4940, 5122, 6110, 7144, 7486, 7880, 8930, 9259, 9880, 10244, 11609, 12220, 12805, 14972, 17860, 18518, 18715, 20488, 23218, 24440, 25610, 29944, 35720, 37036, 37430, 46295, 46436, 48659, 51220, 58045, 74072, 74860, 92590, 92872, 97318, 102440, 116090, 120367, 149720, 175921, 185180, 194636, 232180, 240734, 243295, 351842, 370360, 389272, 464360, 481468, 486590, 601835, 703684, 879605, 962936, 973180, 1203670, 1407368, 1759210, 1946360, 2286973, 2407340, 3518420, 4573946, 4814680, 7036840, 9147892, 11434865, 18295784, 22869730, 45739460, 91478920]

約数ペア:

[(1, 91478920), (2, 45739460), (4, 22869730), (5, 18295784), (8, 11434865), (10, 9147892), (13, 7036840), (19, 4814680), (20, 4573946), (26, 3518420), (38, 2407340), (40, 2286973), (47, 1946360), (52, 1759210), (65, 1407368), (76, 1203670), (94, 973180), (95, 962936), (104, 879605), (130, 703684), (152, 601835), (188, 486590), (190, 481468), (197, 464360), (235, 389272), (247, 370360), (260, 351842), (376, 243295), (380, 240734), (394, 232180), (470, 194636), (494, 185180), (520, 175921), (611, 149720), (760, 120367), (788, 116090), (893, 102440), (940, 97318), (985, 92872), (988, 92590), (1222, 74860), (1235, 74072), (1576, 58045), (1786, 51220), (1880, 48659), (1970, 46436), (1976, 46295), (2444, 37430), (2470, 37036), (2561, 35720), (3055, 29944), (3572, 25610), (3743, 24440), (3940, 23218), (4465, 20488), (4888, 18715), (4940, 18518), (5122, 17860), (6110, 14972), (7144, 12805), (7486, 12220), (7880, 11609), (8930, 10244), (9259, 9880)]