18032080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:716

約数の個数: 80

約数和(自身を含む): 47282688

約数和(自身を除く): 29250608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 661, 682, 880, 1240, 1322, 1364, 1705, 2480, 2644, 2728, 3305, 3410, 5288, 5456, 6610, 6820, 7271, 10576, 13220, 13640, 14542, 20491, 26440, 27280, 29084, 36355, 40982, 52880, 58168, 72710, 81964, 102455, 116336, 145420, 163928, 204910, 225401, 290840, 327856, 409820, 450802, 581680, 819640, 901604, 1127005, 1639280, 1803208, 2254010, 3606416, 4508020, 9016040, 18032080]

約数ペア:

[(1, 18032080), (2, 9016040), (4, 4508020), (5, 3606416), (8, 2254010), (10, 1803208), (11, 1639280), (16, 1127005), (20, 901604), (22, 819640), (31, 581680), (40, 450802), (44, 409820), (55, 327856), (62, 290840), (80, 225401), (88, 204910), (110, 163928), (124, 145420), (155, 116336), (176, 102455), (220, 81964), (248, 72710), (310, 58168), (341, 52880), (440, 40982), (496, 36355), (620, 29084), (661, 27280), (682, 26440), (880, 20491), (1240, 14542), (1322, 13640), (1364, 13220), (1705, 10576), (2480, 7271), (2644, 6820), (2728, 6610), (3305, 5456), (3410, 5288)]