639460560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1$

素因数の和:1517

約数の個数: 160

約数和(自身を含む): 2081295360

約数和(自身を除く): 1441834800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 61, 62, 80, 93, 120, 122, 124, 155, 183, 186, 240, 244, 248, 305, 310, 366, 372, 465, 488, 496, 610, 620, 732, 744, 915, 930, 976, 1220, 1240, 1409, 1464, 1488, 1830, 1860, 1891, 2440, 2480, 2818, 2928, 3660, 3720, 3782, 4227, 4880, 5636, 5673, 7045, 7320, 7440, 7564, 8454, 9455, 11272, 11346, 14090, 14640, 15128, 16908, 18910, 21135, 22544, 22692, 28180, 28365, 30256, 33816, 37820, 42270, 43679, 45384, 56360, 56730, 67632, 75640, 84540, 85949, 87358, 90768, 112720, 113460, 131037, 151280, 169080, 171898, 174716, 218395, 226920, 257847, 262074, 338160, 343796, 349432, 429745, 436790, 453840, 515694, 524148, 655185, 687592, 698864, 859490, 873580, 1031388, 1048296, 1289235, 1310370, 1375184, 1718980, 1747160, 2062776, 2096592, 2578470, 2620740, 2664419, 3437960, 3494320, 4125552, 5156940, 5241480, 5328838, 6875920, 7993257, 10313880, 10482960, 10657676, 13322095, 15986514, 20627760, 21315352, 26644190, 31973028, 39966285, 42630704, 53288380, 63946056, 79932570, 106576760, 127892112, 159865140, 213153520, 319730280, 639460560]

約数ペア:

[(1, 639460560), (2, 319730280), (3, 213153520), (4, 159865140), (5, 127892112), (6, 106576760), (8, 79932570), (10, 63946056), (12, 53288380), (15, 42630704), (16, 39966285), (20, 31973028), (24, 26644190), (30, 21315352), (31, 20627760), (40, 15986514), (48, 13322095), (60, 10657676), (61, 10482960), (62, 10313880), (80, 7993257), (93, 6875920), (120, 5328838), (122, 5241480), (124, 5156940), (155, 4125552), (183, 3494320), (186, 3437960), (240, 2664419), (244, 2620740), (248, 2578470), (305, 2096592), (310, 2062776), (366, 1747160), (372, 1718980), (465, 1375184), (488, 1310370), (496, 1289235), (610, 1048296), (620, 1031388), (732, 873580), (744, 859490), (915, 698864), (930, 687592), (976, 655185), (1220, 524148), (1240, 515694), (1409, 453840), (1464, 436790), (1488, 429745), (1830, 349432), (1860, 343796), (1891, 338160), (2440, 262074), (2480, 257847), (2818, 226920), (2928, 218395), (3660, 174716), (3720, 171898), (3782, 169080), (4227, 151280), (4880, 131037), (5636, 113460), (5673, 112720), (7045, 90768), (7320, 87358), (7440, 85949), (7564, 84540), (8454, 75640), (9455, 67632), (11272, 56730), (11346, 56360), (14090, 45384), (14640, 43679), (15128, 42270), (16908, 37820), (18910, 33816), (21135, 30256), (22544, 28365), (22692, 28180)]