89103920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 229025520

約数和(自身を除く): 139921600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 61, 62, 76, 80, 95, 122, 124, 152, 155, 190, 244, 248, 304, 305, 310, 380, 488, 496, 589, 610, 620, 760, 961, 976, 1159, 1178, 1220, 1240, 1520, 1891, 1922, 2318, 2356, 2440, 2480, 2945, 3782, 3844, 4636, 4712, 4805, 4880, 5795, 5890, 7564, 7688, 9272, 9424, 9455, 9610, 11590, 11780, 15128, 15376, 18259, 18544, 18910, 19220, 23180, 23560, 30256, 35929, 36518, 37820, 38440, 46360, 47120, 58621, 71858, 73036, 75640, 76880, 91295, 92720, 117242, 143716, 146072, 151280, 179645, 182590, 234484, 287432, 292144, 293105, 359290, 365180, 468968, 574864, 586210, 718580, 730360, 937936, 1113799, 1172420, 1437160, 1460720, 2227598, 2344840, 2874320, 4455196, 4689680, 5568995, 8910392, 11137990, 17820784, 22275980, 44551960, 89103920]

約数ペア:

[(1, 89103920), (2, 44551960), (4, 22275980), (5, 17820784), (8, 11137990), (10, 8910392), (16, 5568995), (19, 4689680), (20, 4455196), (31, 2874320), (38, 2344840), (40, 2227598), (61, 1460720), (62, 1437160), (76, 1172420), (80, 1113799), (95, 937936), (122, 730360), (124, 718580), (152, 586210), (155, 574864), (190, 468968), (244, 365180), (248, 359290), (304, 293105), (305, 292144), (310, 287432), (380, 234484), (488, 182590), (496, 179645), (589, 151280), (610, 146072), (620, 143716), (760, 117242), (961, 92720), (976, 91295), (1159, 76880), (1178, 75640), (1220, 73036), (1240, 71858), (1520, 58621), (1891, 47120), (1922, 46360), (2318, 38440), (2356, 37820), (2440, 36518), (2480, 35929), (2945, 30256), (3782, 23560), (3844, 23180), (4636, 19220), (4712, 18910), (4805, 18544), (4880, 18259), (5795, 15376), (5890, 15128), (7564, 11780), (7688, 11590), (9272, 9610), (9424, 9455)]