28340620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 108

約数和(自身を含む): 76416480

約数和(自身を除く): 48075860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 196, 220, 239, 242, 245, 308, 385, 478, 484, 490, 539, 605, 770, 847, 956, 980, 1078, 1195, 1210, 1540, 1673, 1694, 2156, 2390, 2420, 2629, 2695, 3346, 3388, 4235, 4780, 5258, 5390, 5929, 6692, 8365, 8470, 10516, 10780, 11711, 11858, 13145, 16730, 16940, 18403, 23422, 23716, 26290, 28919, 29645, 33460, 36806, 46844, 52580, 57838, 58555, 59290, 73612, 92015, 115676, 117110, 118580, 128821, 144595, 184030, 202433, 234220, 257642, 289190, 368060, 404866, 515284, 578380, 644105, 809732, 1012165, 1288210, 1417031, 2024330, 2576420, 2834062, 4048660, 5668124, 7085155, 14170310, 28340620]

約数ペア:

[(1, 28340620), (2, 14170310), (4, 7085155), (5, 5668124), (7, 4048660), (10, 2834062), (11, 2576420), (14, 2024330), (20, 1417031), (22, 1288210), (28, 1012165), (35, 809732), (44, 644105), (49, 578380), (55, 515284), (70, 404866), (77, 368060), (98, 289190), (110, 257642), (121, 234220), (140, 202433), (154, 184030), (196, 144595), (220, 128821), (239, 118580), (242, 117110), (245, 115676), (308, 92015), (385, 73612), (478, 59290), (484, 58555), (490, 57838), (539, 52580), (605, 46844), (770, 36806), (847, 33460), (956, 29645), (980, 28919), (1078, 26290), (1195, 23716), (1210, 23422), (1540, 18403), (1673, 16940), (1694, 16730), (2156, 13145), (2390, 11858), (2420, 11711), (2629, 10780), (2695, 10516), (3346, 8470), (3388, 8365), (4235, 6692), (4780, 5929), (5258, 5390)]