1388891760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{186679}}^1$

素因数の和:186726

約数の個数: 80

約数和(自身を含む): 4444477440

約数和(自身を除く): 3055585680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 186679, 373358, 560037, 746716, 933395, 1120074, 1493432, 1866790, 2240148, 2800185, 2986864, 3733580, 4480296, 5600370, 5787049, 7467160, 8960592, 11200740, 11574098, 14934320, 17361147, 22401480, 23148196, 28935245, 34722294, 44802960, 46296392, 57870490, 69444588, 86805735, 92592784, 115740980, 138889176, 173611470, 231481960, 277778352, 347222940, 462963920, 694445880, 1388891760]

約数ペア:

[(1, 1388891760), (2, 694445880), (3, 462963920), (4, 347222940), (5, 277778352), (6, 231481960), (8, 173611470), (10, 138889176), (12, 115740980), (15, 92592784), (16, 86805735), (20, 69444588), (24, 57870490), (30, 46296392), (31, 44802960), (40, 34722294), (48, 28935245), (60, 23148196), (62, 22401480), (80, 17361147), (93, 14934320), (120, 11574098), (124, 11200740), (155, 8960592), (186, 7467160), (240, 5787049), (248, 5600370), (310, 4480296), (372, 3733580), (465, 2986864), (496, 2800185), (620, 2240148), (744, 1866790), (930, 1493432), (1240, 1120074), (1488, 933395), (1860, 746716), (2480, 560037), (3720, 373358), (7440, 186679)]