68966960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 180442320

約数和(自身を除く): 111475360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 157, 170, 190, 272, 289, 304, 314, 323, 340, 380, 578, 628, 646, 680, 760, 785, 1156, 1256, 1292, 1360, 1445, 1520, 1570, 1615, 2312, 2512, 2584, 2669, 2890, 2983, 3140, 3230, 4624, 5168, 5338, 5491, 5780, 5966, 6280, 6460, 10676, 10982, 11560, 11932, 12560, 12920, 13345, 14915, 21352, 21964, 23120, 23864, 25840, 26690, 27455, 29830, 42704, 43928, 45373, 47728, 50711, 53380, 54910, 59660, 87856, 90746, 101422, 106760, 109820, 119320, 181492, 202844, 213520, 219640, 226865, 238640, 253555, 362984, 405688, 439280, 453730, 507110, 725968, 811376, 862087, 907460, 1014220, 1724174, 1814920, 2028440, 3448348, 3629840, 4056880, 4310435, 6896696, 8620870, 13793392, 17241740, 34483480, 68966960]

約数ペア:

[(1, 68966960), (2, 34483480), (4, 17241740), (5, 13793392), (8, 8620870), (10, 6896696), (16, 4310435), (17, 4056880), (19, 3629840), (20, 3448348), (34, 2028440), (38, 1814920), (40, 1724174), (68, 1014220), (76, 907460), (80, 862087), (85, 811376), (95, 725968), (136, 507110), (152, 453730), (157, 439280), (170, 405688), (190, 362984), (272, 253555), (289, 238640), (304, 226865), (314, 219640), (323, 213520), (340, 202844), (380, 181492), (578, 119320), (628, 109820), (646, 106760), (680, 101422), (760, 90746), (785, 87856), (1156, 59660), (1256, 54910), (1292, 53380), (1360, 50711), (1445, 47728), (1520, 45373), (1570, 43928), (1615, 42704), (2312, 29830), (2512, 27455), (2584, 26690), (2669, 25840), (2890, 23864), (2983, 23120), (3140, 21964), (3230, 21352), (4624, 14915), (5168, 13345), (5338, 12920), (5491, 12560), (5780, 11932), (5966, 11560), (6280, 10982), (6460, 10676)]