66742820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 156280320

約数和(自身を除く): 89537500

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 47, 74, 76, 94, 95, 101, 148, 185, 188, 190, 202, 235, 370, 380, 404, 470, 505, 703, 740, 893, 940, 1010, 1406, 1739, 1786, 1919, 2020, 2812, 3478, 3515, 3572, 3737, 3838, 4465, 4747, 6956, 7030, 7474, 7676, 8695, 8930, 9494, 9595, 14060, 14948, 17390, 17860, 18685, 18988, 19190, 23735, 33041, 34780, 37370, 38380, 47470, 66082, 71003, 74740, 90193, 94940, 132164, 142006, 165205, 175639, 180386, 284012, 330410, 351278, 355015, 360772, 450965, 660820, 702556, 710030, 878195, 901930, 1420060, 1756390, 1803860, 3337141, 3512780, 6674282, 13348564, 16685705, 33371410, 66742820]

約数ペア:

[(1, 66742820), (2, 33371410), (4, 16685705), (5, 13348564), (10, 6674282), (19, 3512780), (20, 3337141), (37, 1803860), (38, 1756390), (47, 1420060), (74, 901930), (76, 878195), (94, 710030), (95, 702556), (101, 660820), (148, 450965), (185, 360772), (188, 355015), (190, 351278), (202, 330410), (235, 284012), (370, 180386), (380, 175639), (404, 165205), (470, 142006), (505, 132164), (703, 94940), (740, 90193), (893, 74740), (940, 71003), (1010, 66082), (1406, 47470), (1739, 38380), (1786, 37370), (1919, 34780), (2020, 33041), (2812, 23735), (3478, 19190), (3515, 18988), (3572, 18685), (3737, 17860), (3838, 17390), (4465, 14948), (4747, 14060), (6956, 9595), (7030, 9494), (7474, 8930), (7676, 8695)]