18446540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2689}}^1$

素因数の和:2719

約数の個数: 48

約数和(自身を含む): 45192000

約数和(自身を除く): 26745460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2689, 3430, 5378, 6860, 10756, 13445, 18823, 26890, 37646, 53780, 75292, 94115, 131761, 188230, 263522, 376460, 527044, 658805, 922327, 1317610, 1844654, 2635220, 3689308, 4611635, 9223270, 18446540]

約数ペア:

[(1, 18446540), (2, 9223270), (4, 4611635), (5, 3689308), (7, 2635220), (10, 1844654), (14, 1317610), (20, 922327), (28, 658805), (35, 527044), (49, 376460), (70, 263522), (98, 188230), (140, 131761), (196, 94115), (245, 75292), (343, 53780), (490, 37646), (686, 26890), (980, 18823), (1372, 13445), (1715, 10756), (2689, 6860), (3430, 5378)]