77501720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 185077440

約数和(自身を除く): 107575720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 610, 920, 1220, 1381, 1403, 2440, 2762, 2806, 5524, 5612, 6905, 7015, 11048, 11224, 13810, 14030, 27620, 28060, 31763, 55240, 56120, 63526, 84241, 127052, 158815, 168482, 254104, 317630, 336964, 421205, 635260, 673928, 842410, 1270520, 1684820, 1937543, 3369640, 3875086, 7750172, 9687715, 15500344, 19375430, 38750860, 77501720]

約数ペア:

[(1, 77501720), (2, 38750860), (4, 19375430), (5, 15500344), (8, 9687715), (10, 7750172), (20, 3875086), (23, 3369640), (40, 1937543), (46, 1684820), (61, 1270520), (92, 842410), (115, 673928), (122, 635260), (184, 421205), (230, 336964), (244, 317630), (305, 254104), (460, 168482), (488, 158815), (610, 127052), (920, 84241), (1220, 63526), (1381, 56120), (1403, 55240), (2440, 31763), (2762, 28060), (2806, 27620), (5524, 14030), (5612, 13810), (6905, 11224), (7015, 11048)]