87666760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^2$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 217900800

約数和(自身を除く): 130234040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 61, 62, 76, 95, 122, 124, 152, 155, 190, 244, 248, 305, 310, 380, 488, 589, 610, 620, 760, 1159, 1178, 1220, 1240, 1891, 2318, 2356, 2440, 2945, 3721, 3782, 4636, 4712, 5795, 5890, 7442, 7564, 9272, 9455, 11590, 11780, 14884, 15128, 18605, 18910, 23180, 23560, 29768, 35929, 37210, 37820, 46360, 70699, 71858, 74420, 75640, 115351, 141398, 143716, 148840, 179645, 230702, 282796, 287432, 353495, 359290, 461404, 565592, 576755, 706990, 718580, 922808, 1153510, 1413980, 1437160, 2191669, 2307020, 2827960, 4383338, 4614040, 8766676, 10958345, 17533352, 21916690, 43833380, 87666760]

約数ペア:

[(1, 87666760), (2, 43833380), (4, 21916690), (5, 17533352), (8, 10958345), (10, 8766676), (19, 4614040), (20, 4383338), (31, 2827960), (38, 2307020), (40, 2191669), (61, 1437160), (62, 1413980), (76, 1153510), (95, 922808), (122, 718580), (124, 706990), (152, 576755), (155, 565592), (190, 461404), (244, 359290), (248, 353495), (305, 287432), (310, 282796), (380, 230702), (488, 179645), (589, 148840), (610, 143716), (620, 141398), (760, 115351), (1159, 75640), (1178, 74420), (1220, 71858), (1240, 70699), (1891, 46360), (2318, 37820), (2356, 37210), (2440, 35929), (2945, 29768), (3721, 23560), (3782, 23180), (4636, 18910), (4712, 18605), (5795, 15128), (5890, 14884), (7442, 11780), (7564, 11590), (9272, 9455)]