78459760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1922

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 121027472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 1861, 2108, 2480, 2635, 3722, 4216, 5270, 7444, 8432, 9305, 10540, 14888, 18610, 21080, 29776, 31637, 37220, 42160, 57691, 63274, 74440, 115382, 126548, 148880, 158185, 230764, 253096, 288455, 316370, 461528, 506192, 576910, 632740, 923056, 980747, 1153820, 1265480, 1961494, 2307640, 2530960, 3922988, 4615280, 4903735, 7845976, 9807470, 15691952, 19614940, 39229880, 78459760]

約数ペア:

[(1, 78459760), (2, 39229880), (4, 19614940), (5, 15691952), (8, 9807470), (10, 7845976), (16, 4903735), (17, 4615280), (20, 3922988), (31, 2530960), (34, 2307640), (40, 1961494), (62, 1265480), (68, 1153820), (80, 980747), (85, 923056), (124, 632740), (136, 576910), (155, 506192), (170, 461528), (248, 316370), (272, 288455), (310, 253096), (340, 230764), (496, 158185), (527, 148880), (620, 126548), (680, 115382), (1054, 74440), (1240, 63274), (1360, 57691), (1861, 42160), (2108, 37220), (2480, 31637), (2635, 29776), (3722, 21080), (4216, 18610), (5270, 14888), (7444, 10540), (8432, 9305)]