18741580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6553}}^1$

素因数の和:6586

約数の個数: 48

約数和(自身を含む): 46245024

約数和(自身を除く): 27503444

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6553, 13106, 26212, 32765, 65530, 72083, 85189, 131060, 144166, 170378, 288332, 340756, 360415, 425945, 720830, 851890, 937079, 1441660, 1703780, 1874158, 3748316, 4685395, 9370790, 18741580]

約数ペア:

[(1, 18741580), (2, 9370790), (4, 4685395), (5, 3748316), (10, 1874158), (11, 1703780), (13, 1441660), (20, 937079), (22, 851890), (26, 720830), (44, 425945), (52, 360415), (55, 340756), (65, 288332), (110, 170378), (130, 144166), (143, 131060), (220, 85189), (260, 72083), (286, 65530), (572, 32765), (715, 26212), (1430, 13106), (2860, 6553)]