20956980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:417

約数の個数: 96

約数和(自身を含む): 64810368

約数和(自身を除く): 43853388

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 113, 132, 165, 220, 226, 281, 330, 339, 452, 562, 565, 660, 678, 843, 1124, 1130, 1243, 1356, 1405, 1686, 1695, 2260, 2486, 2810, 3091, 3372, 3390, 3729, 4215, 4972, 5620, 6182, 6215, 6780, 7458, 8430, 9273, 12364, 12430, 14916, 15455, 16860, 18546, 18645, 24860, 30910, 31753, 37092, 37290, 46365, 61820, 63506, 74580, 92730, 95259, 127012, 158765, 185460, 190518, 317530, 349283, 381036, 476295, 635060, 698566, 952590, 1047849, 1397132, 1746415, 1905180, 2095698, 3492830, 4191396, 5239245, 6985660, 10478490, 20956980]

約数ペア:

[(1, 20956980), (2, 10478490), (3, 6985660), (4, 5239245), (5, 4191396), (6, 3492830), (10, 2095698), (11, 1905180), (12, 1746415), (15, 1397132), (20, 1047849), (22, 952590), (30, 698566), (33, 635060), (44, 476295), (55, 381036), (60, 349283), (66, 317530), (110, 190518), (113, 185460), (132, 158765), (165, 127012), (220, 95259), (226, 92730), (281, 74580), (330, 63506), (339, 61820), (452, 46365), (562, 37290), (565, 37092), (660, 31753), (678, 30910), (843, 24860), (1124, 18645), (1130, 18546), (1243, 16860), (1356, 15455), (1405, 14916), (1686, 12430), (1695, 12364), (2260, 9273), (2486, 8430), (2810, 7458), (3091, 6780), (3372, 6215), (3390, 6182), (3729, 5620), (4215, 4972)]