280433580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{667699}}^1$

素因数の和:667718

約数の個数: 48

約数和(自身を含む): 897388800

約数和(自身を除く): 616955220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 667699, 1335398, 2003097, 2670796, 3338495, 4006194, 4673893, 6676990, 8012388, 9347786, 10015485, 13353980, 14021679, 18695572, 20030970, 23369465, 28043358, 40061940, 46738930, 56086716, 70108395, 93477860, 140216790, 280433580]

約数ペア:

[(1, 280433580), (2, 140216790), (3, 93477860), (4, 70108395), (5, 56086716), (6, 46738930), (7, 40061940), (10, 28043358), (12, 23369465), (14, 20030970), (15, 18695572), (20, 14021679), (21, 13353980), (28, 10015485), (30, 9347786), (35, 8012388), (42, 6676990), (60, 4673893), (70, 4006194), (84, 3338495), (105, 2670796), (140, 2003097), (210, 1335398), (420, 667699)]