72030920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1951}}^1$

素因数の和:2046

約数の個数: 64

約数和(自身を含む): 177085440

約数和(自身を除く): 105054520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 923, 1420, 1846, 1951, 2840, 3692, 3902, 4615, 7384, 7804, 9230, 9755, 15608, 18460, 19510, 25363, 36920, 39020, 50726, 78040, 101452, 126815, 138521, 202904, 253630, 277042, 507260, 554084, 692605, 1014520, 1108168, 1385210, 1800773, 2770420, 3601546, 5540840, 7203092, 9003865, 14406184, 18007730, 36015460, 72030920]

約数ペア:

[(1, 72030920), (2, 36015460), (4, 18007730), (5, 14406184), (8, 9003865), (10, 7203092), (13, 5540840), (20, 3601546), (26, 2770420), (40, 1800773), (52, 1385210), (65, 1108168), (71, 1014520), (104, 692605), (130, 554084), (142, 507260), (260, 277042), (284, 253630), (355, 202904), (520, 138521), (568, 126815), (710, 101452), (923, 78040), (1420, 50726), (1846, 39020), (1951, 36920), (2840, 25363), (3692, 19510), (3902, 18460), (4615, 15608), (7384, 9755), (7804, 9230)]