87580880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 216295680

約数和(自身を除く): 128714800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 157, 190, 304, 314, 367, 380, 628, 734, 760, 785, 1256, 1468, 1520, 1570, 1835, 2512, 2936, 2983, 3140, 3670, 5872, 5966, 6280, 6973, 7340, 11932, 12560, 13946, 14680, 14915, 23864, 27892, 29360, 29830, 34865, 47728, 55784, 57619, 59660, 69730, 111568, 115238, 119320, 139460, 230476, 238640, 278920, 288095, 460952, 557840, 576190, 921904, 1094761, 1152380, 2189522, 2304760, 4379044, 4609520, 5473805, 8758088, 10947610, 17516176, 21895220, 43790440, 87580880]

約数ペア:

[(1, 87580880), (2, 43790440), (4, 21895220), (5, 17516176), (8, 10947610), (10, 8758088), (16, 5473805), (19, 4609520), (20, 4379044), (38, 2304760), (40, 2189522), (76, 1152380), (80, 1094761), (95, 921904), (152, 576190), (157, 557840), (190, 460952), (304, 288095), (314, 278920), (367, 238640), (380, 230476), (628, 139460), (734, 119320), (760, 115238), (785, 111568), (1256, 69730), (1468, 59660), (1520, 57619), (1570, 55784), (1835, 47728), (2512, 34865), (2936, 29830), (2983, 29360), (3140, 27892), (3670, 23864), (5872, 14915), (5966, 14680), (6280, 13946), (6973, 12560), (7340, 11932)]