20939679180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{4021}}^1\times {\mathrm{4133}}^1$

素因数の和:8176

約数の個数: 144

約数和(自身を含む): 72626508864

約数和(自身を除く): 51686829684

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 4021, 4133, 8042, 8266, 12063, 12399, 16084, 16532, 20105, 20665, 24126, 24798, 28147, 28931, 36189, 37197, 40210, 41330, 48252, 49596, 56294, 57862, 60315, 61995, 72378, 74394, 80420, 82660, 84441, 86793, 112588, 115724, 120630, 123990, 140735, 144655, 144756, 148788, 168882, 173586, 180945, 185985, 241260, 247980, 253323, 260379, 281470, 289310, 337764, 347172, 361890, 371970, 422205, 433965, 506646, 520758, 562940, 578620, 723780, 743940, 844410, 867930, 1013292, 1041516, 1266615, 1301895, 1688820, 1735860, 2533230, 2603790, 5066460, 5207580, 16618793, 33237586, 49856379, 66475172, 83093965, 99712758, 116331551, 149569137, 166187930, 199425516, 232663102, 249281895, 299138274, 332375860, 348994653, 465326204, 498563790, 581657755, 598276548, 697989306, 747845685, 997127580, 1046983959, 1163315510, 1395978612, 1495691370, 1744973265, 2093967918, 2326631020, 2991382740, 3489946530, 4187935836, 5234919795, 6979893060, 10469839590, 20939679180]

約数ペア:

[(1, 20939679180), (2, 10469839590), (3, 6979893060), (4, 5234919795), (5, 4187935836), (6, 3489946530), (7, 2991382740), (9, 2326631020), (10, 2093967918), (12, 1744973265), (14, 1495691370), (15, 1395978612), (18, 1163315510), (20, 1046983959), (21, 997127580), (28, 747845685), (30, 697989306), (35, 598276548), (36, 581657755), (42, 498563790), (45, 465326204), (60, 348994653), (63, 332375860), (70, 299138274), (84, 249281895), (90, 232663102), (105, 199425516), (126, 166187930), (140, 149569137), (180, 116331551), (210, 99712758), (252, 83093965), (315, 66475172), (420, 49856379), (630, 33237586), (1260, 16618793), (4021, 5207580), (4133, 5066460), (8042, 2603790), (8266, 2533230), (12063, 1735860), (12399, 1688820), (16084, 1301895), (16532, 1266615), (20105, 1041516), (20665, 1013292), (24126, 867930), (24798, 844410), (28147, 743940), (28931, 723780), (36189, 578620), (37197, 562940), (40210, 520758), (41330, 506646), (48252, 433965), (49596, 422205), (56294, 371970), (57862, 361890), (60315, 347172), (61995, 337764), (72378, 289310), (74394, 281470), (80420, 260379), (82660, 253323), (84441, 247980), (86793, 241260), (112588, 185985), (115724, 180945), (120630, 173586), (123990, 168882), (140735, 148788), (144655, 144756)]