4357840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 11070720

約数和(自身を除く): 6712880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 61, 76, 80, 94, 95, 122, 152, 188, 190, 235, 244, 304, 305, 376, 380, 470, 488, 610, 752, 760, 893, 940, 976, 1159, 1220, 1520, 1786, 1880, 2318, 2440, 2867, 3572, 3760, 4465, 4636, 4880, 5734, 5795, 7144, 8930, 9272, 11468, 11590, 14288, 14335, 17860, 18544, 22936, 23180, 28670, 35720, 45872, 46360, 54473, 57340, 71440, 92720, 108946, 114680, 217892, 229360, 272365, 435784, 544730, 871568, 1089460, 2178920, 4357840]

約数ペア:

[(1, 4357840), (2, 2178920), (4, 1089460), (5, 871568), (8, 544730), (10, 435784), (16, 272365), (19, 229360), (20, 217892), (38, 114680), (40, 108946), (47, 92720), (61, 71440), (76, 57340), (80, 54473), (94, 46360), (95, 45872), (122, 35720), (152, 28670), (188, 23180), (190, 22936), (235, 18544), (244, 17860), (304, 14335), (305, 14288), (376, 11590), (380, 11468), (470, 9272), (488, 8930), (610, 7144), (752, 5795), (760, 5734), (893, 4880), (940, 4636), (976, 4465), (1159, 3760), (1220, 3572), (1520, 2867), (1786, 2440), (1880, 2318)]