71479980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2777}}^1$

素因数の和:2816

約数の個数: 144

約数和(自身を含む): 254820384

約数和(自身を除く): 183340404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1287, 1430, 1716, 1980, 2145, 2340, 2574, 2777, 2860, 4290, 5148, 5554, 6435, 8331, 8580, 11108, 12870, 13885, 16662, 24993, 25740, 27770, 30547, 33324, 36101, 41655, 49986, 55540, 61094, 72202, 83310, 91641, 99972, 108303, 122188, 124965, 144404, 152735, 166620, 180505, 183282, 216606, 249930, 274923, 305470, 324909, 361010, 366564, 397111, 433212, 458205, 499860, 541515, 549846, 610940, 649818, 722020, 794222, 916410, 1083030, 1099692, 1191333, 1299636, 1374615, 1588444, 1624545, 1832820, 1985555, 2166060, 2382666, 2749230, 3249090, 3573999, 3971110, 4765332, 5498460, 5956665, 6498180, 7147998, 7942220, 11913330, 14295996, 17869995, 23826660, 35739990, 71479980]

約数ペア:

[(1, 71479980), (2, 35739990), (3, 23826660), (4, 17869995), (5, 14295996), (6, 11913330), (9, 7942220), (10, 7147998), (11, 6498180), (12, 5956665), (13, 5498460), (15, 4765332), (18, 3971110), (20, 3573999), (22, 3249090), (26, 2749230), (30, 2382666), (33, 2166060), (36, 1985555), (39, 1832820), (44, 1624545), (45, 1588444), (52, 1374615), (55, 1299636), (60, 1191333), (65, 1099692), (66, 1083030), (78, 916410), (90, 794222), (99, 722020), (110, 649818), (117, 610940), (130, 549846), (132, 541515), (143, 499860), (156, 458205), (165, 433212), (180, 397111), (195, 366564), (198, 361010), (220, 324909), (234, 305470), (260, 274923), (286, 249930), (330, 216606), (390, 183282), (396, 180505), (429, 166620), (468, 152735), (495, 144404), (572, 124965), (585, 122188), (660, 108303), (715, 99972), (780, 91641), (858, 83310), (990, 72202), (1170, 61094), (1287, 55540), (1430, 49986), (1716, 41655), (1980, 36101), (2145, 33324), (2340, 30547), (2574, 27770), (2777, 25740), (2860, 24993), (4290, 16662), (5148, 13885), (5554, 12870), (6435, 11108), (8331, 8580)]