81719560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3833}}^1$

素因数の和:3898

約数の個数: 64

約数和(自身を含む): 202895280

約数和(自身を除く): 121175720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 3833, 4264, 5330, 7666, 10660, 15332, 19165, 21320, 30664, 38330, 49829, 76660, 99658, 153320, 157153, 199316, 249145, 314306, 398632, 498290, 628612, 785765, 996580, 1257224, 1571530, 1993160, 2042989, 3143060, 4085978, 6286120, 8171956, 10214945, 16343912, 20429890, 40859780, 81719560]

約数ペア:

[(1, 81719560), (2, 40859780), (4, 20429890), (5, 16343912), (8, 10214945), (10, 8171956), (13, 6286120), (20, 4085978), (26, 3143060), (40, 2042989), (41, 1993160), (52, 1571530), (65, 1257224), (82, 996580), (104, 785765), (130, 628612), (164, 498290), (205, 398632), (260, 314306), (328, 249145), (410, 199316), (520, 157153), (533, 153320), (820, 99658), (1066, 76660), (1640, 49829), (2132, 38330), (2665, 30664), (3833, 21320), (4264, 19165), (5330, 15332), (7666, 10660)]