641853760

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{727}}^1$

素因数の和:864

約数の個数: 112

約数和(自身を含む): 1597639680

約数和(自身を除く): 955785920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 89, 124, 155, 160, 178, 248, 310, 320, 356, 445, 496, 620, 712, 727, 890, 992, 1240, 1424, 1454, 1780, 1984, 2480, 2759, 2848, 2908, 3560, 3635, 4960, 5518, 5696, 5816, 7120, 7270, 9920, 11036, 11632, 13795, 14240, 14540, 22072, 22537, 23264, 27590, 28480, 29080, 44144, 45074, 46528, 55180, 58160, 64703, 88288, 90148, 110360, 112685, 116320, 129406, 176576, 180296, 220720, 225370, 232640, 258812, 323515, 360592, 441440, 450740, 517624, 647030, 721184, 882880, 901480, 1035248, 1294060, 1442368, 1802960, 2005793, 2070496, 2588120, 3605920, 4011586, 4140992, 5176240, 7211840, 8023172, 10028965, 10352480, 16046344, 20057930, 20704960, 32092688, 40115860, 64185376, 80231720, 128370752, 160463440, 320926880, 641853760]

約数ペア:

[(1, 641853760), (2, 320926880), (4, 160463440), (5, 128370752), (8, 80231720), (10, 64185376), (16, 40115860), (20, 32092688), (31, 20704960), (32, 20057930), (40, 16046344), (62, 10352480), (64, 10028965), (80, 8023172), (89, 7211840), (124, 5176240), (155, 4140992), (160, 4011586), (178, 3605920), (248, 2588120), (310, 2070496), (320, 2005793), (356, 1802960), (445, 1442368), (496, 1294060), (620, 1035248), (712, 901480), (727, 882880), (890, 721184), (992, 647030), (1240, 517624), (1424, 450740), (1454, 441440), (1780, 360592), (1984, 323515), (2480, 258812), (2759, 232640), (2848, 225370), (2908, 220720), (3560, 180296), (3635, 176576), (4960, 129406), (5518, 116320), (5696, 112685), (5816, 110360), (7120, 90148), (7270, 88288), (9920, 64703), (11036, 58160), (11632, 55180), (13795, 46528), (14240, 45074), (14540, 44144), (22072, 29080), (22537, 28480), (23264, 27590)]