221424008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 458680320

約数和(自身を除く): 237256312

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 157, 191, 284, 314, 382, 568, 628, 764, 923, 1256, 1528, 1846, 2041, 2483, 3692, 4082, 4966, 7384, 8164, 9932, 11147, 13561, 16328, 19864, 22294, 27122, 29987, 44588, 54244, 59974, 89176, 108488, 119948, 144911, 176293, 239896, 289822, 352586, 389831, 579644, 705172, 779662, 1159288, 1410344, 1559324, 2129077, 3118648, 4258154, 8516308, 17032616, 27678001, 55356002, 110712004, 221424008]

約数ペア:

[(1, 221424008), (2, 110712004), (4, 55356002), (8, 27678001), (13, 17032616), (26, 8516308), (52, 4258154), (71, 3118648), (104, 2129077), (142, 1559324), (157, 1410344), (191, 1159288), (284, 779662), (314, 705172), (382, 579644), (568, 389831), (628, 352586), (764, 289822), (923, 239896), (1256, 176293), (1528, 144911), (1846, 119948), (2041, 108488), (2483, 89176), (3692, 59974), (4082, 54244), (4966, 44588), (7384, 29987), (8164, 27122), (9932, 22294), (11147, 19864), (13561, 16328)]