20709150

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{163}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 64912512

約数和(自身を除く): 44203362

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 25, 30, 33, 35, 42, 50, 55, 66, 70, 75, 77, 105, 110, 121, 150, 154, 163, 165, 175, 210, 231, 242, 275, 326, 330, 350, 363, 385, 462, 489, 525, 550, 605, 726, 770, 815, 825, 847, 978, 1050, 1141, 1155, 1210, 1630, 1650, 1694, 1793, 1815, 1925, 2282, 2310, 2445, 2541, 3025, 3423, 3586, 3630, 3850, 4075, 4235, 4890, 5082, 5379, 5705, 5775, 6050, 6846, 8150, 8470, 8965, 9075, 10758, 11410, 11550, 12225, 12551, 12705, 17115, 17930, 18150, 19723, 21175, 24450, 25102, 25410, 26895, 28525, 34230, 37653, 39446, 42350, 44825, 53790, 57050, 59169, 62755, 63525, 75306, 85575, 89650, 98615, 118338, 125510, 127050, 134475, 138061, 171150, 188265, 197230, 268950, 276122, 295845, 313775, 376530, 414183, 493075, 591690, 627550, 690305, 828366, 941325, 986150, 1380610, 1479225, 1882650, 2070915, 2958450, 3451525, 4141830, 6903050, 10354575, 20709150]

約数ペア:

[(1, 20709150), (2, 10354575), (3, 6903050), (5, 4141830), (6, 3451525), (7, 2958450), (10, 2070915), (11, 1882650), (14, 1479225), (15, 1380610), (21, 986150), (22, 941325), (25, 828366), (30, 690305), (33, 627550), (35, 591690), (42, 493075), (50, 414183), (55, 376530), (66, 313775), (70, 295845), (75, 276122), (77, 268950), (105, 197230), (110, 188265), (121, 171150), (150, 138061), (154, 134475), (163, 127050), (165, 125510), (175, 118338), (210, 98615), (231, 89650), (242, 85575), (275, 75306), (326, 63525), (330, 62755), (350, 59169), (363, 57050), (385, 53790), (462, 44825), (489, 42350), (525, 39446), (550, 37653), (605, 34230), (726, 28525), (770, 26895), (815, 25410), (825, 25102), (847, 24450), (978, 21175), (1050, 19723), (1141, 18150), (1155, 17930), (1210, 17115), (1630, 12705), (1650, 12551), (1694, 12225), (1793, 11550), (1815, 11410), (1925, 10758), (2282, 9075), (2310, 8965), (2445, 8470), (2541, 8150), (3025, 6846), (3423, 6050), (3586, 5775), (3630, 5705), (3850, 5379), (4075, 5082), (4235, 4890)]