28162420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 71406720

約数和(自身を除く): 43244300

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 43, 44, 52, 55, 65, 86, 110, 130, 143, 172, 215, 220, 229, 260, 286, 430, 458, 473, 559, 572, 715, 860, 916, 946, 1118, 1145, 1430, 1892, 2236, 2290, 2365, 2519, 2795, 2860, 2977, 4580, 4730, 5038, 5590, 5954, 6149, 9460, 9847, 10076, 11180, 11908, 12298, 12595, 14885, 19694, 24596, 25190, 29770, 30745, 32747, 39388, 49235, 50380, 59540, 61490, 65494, 98470, 108317, 122980, 128011, 130988, 163735, 196940, 216634, 256022, 327470, 433268, 512044, 541585, 640055, 654940, 1083170, 1280110, 1408121, 2166340, 2560220, 2816242, 5632484, 7040605, 14081210, 28162420]

約数ペア:

[(1, 28162420), (2, 14081210), (4, 7040605), (5, 5632484), (10, 2816242), (11, 2560220), (13, 2166340), (20, 1408121), (22, 1280110), (26, 1083170), (43, 654940), (44, 640055), (52, 541585), (55, 512044), (65, 433268), (86, 327470), (110, 256022), (130, 216634), (143, 196940), (172, 163735), (215, 130988), (220, 128011), (229, 122980), (260, 108317), (286, 98470), (430, 65494), (458, 61490), (473, 59540), (559, 50380), (572, 49235), (715, 39388), (860, 32747), (916, 30745), (946, 29770), (1118, 25190), (1145, 24596), (1430, 19694), (1892, 14885), (2236, 12595), (2290, 12298), (2365, 11908), (2519, 11180), (2795, 10076), (2860, 9847), (2977, 9460), (4580, 6149), (4730, 5954), (5038, 5590)]