155412920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 390368160

約数和(自身を除く): 234955240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 311, 403, 520, 620, 622, 806, 961, 1240, 1244, 1555, 1612, 1922, 2015, 2488, 3110, 3224, 3844, 4030, 4043, 4805, 6220, 7688, 8060, 8086, 9610, 9641, 12440, 12493, 16120, 16172, 19220, 19282, 20215, 24986, 32344, 38440, 38564, 40430, 48205, 49972, 62465, 77128, 80860, 96410, 99944, 124930, 125333, 161720, 192820, 249860, 250666, 298871, 385640, 499720, 501332, 597742, 626665, 1002664, 1195484, 1253330, 1494355, 2390968, 2506660, 2988710, 3885323, 5013320, 5977420, 7770646, 11954840, 15541292, 19426615, 31082584, 38853230, 77706460, 155412920]

約数ペア:

[(1, 155412920), (2, 77706460), (4, 38853230), (5, 31082584), (8, 19426615), (10, 15541292), (13, 11954840), (20, 7770646), (26, 5977420), (31, 5013320), (40, 3885323), (52, 2988710), (62, 2506660), (65, 2390968), (104, 1494355), (124, 1253330), (130, 1195484), (155, 1002664), (248, 626665), (260, 597742), (310, 501332), (311, 499720), (403, 385640), (520, 298871), (620, 250666), (622, 249860), (806, 192820), (961, 161720), (1240, 125333), (1244, 124930), (1555, 99944), (1612, 96410), (1922, 80860), (2015, 77128), (2488, 62465), (3110, 49972), (3224, 48205), (3844, 40430), (4030, 38564), (4043, 38440), (4805, 32344), (6220, 24986), (7688, 20215), (8060, 19282), (8086, 19220), (9610, 16172), (9641, 16120), (12440, 12493)]