201937840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{691}}^1$

素因数の和:998

約数の個数: 80

約数和(自身を含む): 508154976

約数和(自身を除く): 306217136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 281, 520, 562, 691, 1040, 1124, 1382, 1405, 2248, 2764, 2810, 3455, 3653, 4496, 5528, 5620, 6910, 7306, 8983, 11056, 11240, 13820, 14612, 17966, 18265, 22480, 27640, 29224, 35932, 36530, 44915, 55280, 58448, 71864, 73060, 89830, 143728, 146120, 179660, 194171, 292240, 359320, 388342, 718640, 776684, 970855, 1553368, 1941710, 2524223, 3106736, 3883420, 5048446, 7766840, 10096892, 12621115, 15533680, 20193784, 25242230, 40387568, 50484460, 100968920, 201937840]

約数ペア:

[(1, 201937840), (2, 100968920), (4, 50484460), (5, 40387568), (8, 25242230), (10, 20193784), (13, 15533680), (16, 12621115), (20, 10096892), (26, 7766840), (40, 5048446), (52, 3883420), (65, 3106736), (80, 2524223), (104, 1941710), (130, 1553368), (208, 970855), (260, 776684), (281, 718640), (520, 388342), (562, 359320), (691, 292240), (1040, 194171), (1124, 179660), (1382, 146120), (1405, 143728), (2248, 89830), (2764, 73060), (2810, 71864), (3455, 58448), (3653, 55280), (4496, 44915), (5528, 36530), (5620, 35932), (6910, 29224), (7306, 27640), (8983, 22480), (11056, 18265), (11240, 17966), (13820, 14612)]