91641520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 220030560

約数和(自身を除く): 128389040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 89, 122, 178, 211, 244, 305, 356, 422, 445, 488, 610, 712, 844, 890, 976, 1055, 1220, 1424, 1688, 1780, 2110, 2440, 3376, 3560, 4220, 4880, 5429, 7120, 8440, 10858, 12871, 16880, 18779, 21716, 25742, 27145, 37558, 43432, 51484, 54290, 64355, 75116, 86864, 93895, 102968, 108580, 128710, 150232, 187790, 205936, 217160, 257420, 300464, 375580, 434320, 514840, 751160, 1029680, 1145519, 1502320, 2291038, 4582076, 5727595, 9164152, 11455190, 18328304, 22910380, 45820760, 91641520]

約数ペア:

[(1, 91641520), (2, 45820760), (4, 22910380), (5, 18328304), (8, 11455190), (10, 9164152), (16, 5727595), (20, 4582076), (40, 2291038), (61, 1502320), (80, 1145519), (89, 1029680), (122, 751160), (178, 514840), (211, 434320), (244, 375580), (305, 300464), (356, 257420), (422, 217160), (445, 205936), (488, 187790), (610, 150232), (712, 128710), (844, 108580), (890, 102968), (976, 93895), (1055, 86864), (1220, 75116), (1424, 64355), (1688, 54290), (1780, 51484), (2110, 43432), (2440, 37558), (3376, 27145), (3560, 25742), (4220, 21716), (4880, 18779), (5429, 16880), (7120, 12871), (8440, 10858)]