320724880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{673}}^1$

素因数の和:753

約数の個数: 160

約数和(自身を含む): 914655744

約数和(自身を除く): 593930864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 37, 40, 46, 56, 70, 74, 80, 92, 112, 115, 140, 148, 161, 184, 185, 230, 259, 280, 296, 322, 368, 370, 460, 518, 560, 592, 644, 673, 740, 805, 851, 920, 1036, 1288, 1295, 1346, 1480, 1610, 1702, 1840, 2072, 2576, 2590, 2692, 2960, 3220, 3365, 3404, 4144, 4255, 4711, 5180, 5384, 5957, 6440, 6730, 6808, 8510, 9422, 10360, 10768, 11914, 12880, 13460, 13616, 15479, 17020, 18844, 20720, 23555, 23828, 24901, 26920, 29785, 30958, 34040, 37688, 47110, 47656, 49802, 53840, 59570, 61916, 68080, 75376, 77395, 94220, 95312, 99604, 108353, 119140, 123832, 124505, 154790, 174307, 188440, 199208, 216706, 238280, 247664, 249010, 309580, 348614, 376880, 398416, 433412, 476560, 498020, 541765, 572723, 619160, 697228, 866824, 871535, 996040, 1083530, 1145446, 1238320, 1394456, 1733648, 1743070, 1992080, 2167060, 2290892, 2788912, 2863615, 3486140, 4009061, 4334120, 4581784, 5727230, 6972280, 8018122, 8668240, 9163568, 11454460, 13944560, 16036244, 20045305, 22908920, 32072488, 40090610, 45817840, 64144976, 80181220, 160362440, 320724880]

約数ペア:

[(1, 320724880), (2, 160362440), (4, 80181220), (5, 64144976), (7, 45817840), (8, 40090610), (10, 32072488), (14, 22908920), (16, 20045305), (20, 16036244), (23, 13944560), (28, 11454460), (35, 9163568), (37, 8668240), (40, 8018122), (46, 6972280), (56, 5727230), (70, 4581784), (74, 4334120), (80, 4009061), (92, 3486140), (112, 2863615), (115, 2788912), (140, 2290892), (148, 2167060), (161, 1992080), (184, 1743070), (185, 1733648), (230, 1394456), (259, 1238320), (280, 1145446), (296, 1083530), (322, 996040), (368, 871535), (370, 866824), (460, 697228), (518, 619160), (560, 572723), (592, 541765), (644, 498020), (673, 476560), (740, 433412), (805, 398416), (851, 376880), (920, 348614), (1036, 309580), (1288, 249010), (1295, 247664), (1346, 238280), (1480, 216706), (1610, 199208), (1702, 188440), (1840, 174307), (2072, 154790), (2576, 124505), (2590, 123832), (2692, 119140), (2960, 108353), (3220, 99604), (3365, 95312), (3404, 94220), (4144, 77395), (4255, 75376), (4711, 68080), (5180, 61916), (5384, 59570), (5957, 53840), (6440, 49802), (6730, 47656), (6808, 47110), (8510, 37688), (9422, 34040), (10360, 30958), (10768, 29785), (11914, 26920), (12880, 24901), (13460, 23828), (13616, 23555), (15479, 20720), (17020, 18844)]