157345840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1790

約数の個数: 80

約数和(自身を含む): 391626720

約数和(自身を除く): 234280880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 760, 976, 1159, 1220, 1520, 1697, 2318, 2440, 3394, 4636, 4880, 5795, 6788, 8485, 9272, 11590, 13576, 16970, 18544, 23180, 27152, 32243, 33940, 46360, 64486, 67880, 92720, 103517, 128972, 135760, 161215, 207034, 257944, 322430, 414068, 515888, 517585, 644860, 828136, 1035170, 1289720, 1656272, 1966823, 2070340, 2579440, 3933646, 4140680, 7867292, 8281360, 9834115, 15734584, 19668230, 31469168, 39336460, 78672920, 157345840]

約数ペア:

[(1, 157345840), (2, 78672920), (4, 39336460), (5, 31469168), (8, 19668230), (10, 15734584), (16, 9834115), (19, 8281360), (20, 7867292), (38, 4140680), (40, 3933646), (61, 2579440), (76, 2070340), (80, 1966823), (95, 1656272), (122, 1289720), (152, 1035170), (190, 828136), (244, 644860), (304, 517585), (305, 515888), (380, 414068), (488, 322430), (610, 257944), (760, 207034), (976, 161215), (1159, 135760), (1220, 128972), (1520, 103517), (1697, 92720), (2318, 67880), (2440, 64486), (3394, 46360), (4636, 33940), (4880, 32243), (5795, 27152), (6788, 23180), (8485, 18544), (9272, 16970), (11590, 13576)]