25276840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 60768000

約数和(自身を除く): 35491160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 421, 632, 760, 790, 842, 1501, 1580, 1684, 2105, 3002, 3160, 3368, 4210, 6004, 7505, 7999, 8420, 12008, 15010, 15998, 16840, 30020, 31996, 33259, 39995, 60040, 63992, 66518, 79990, 133036, 159980, 166295, 266072, 319960, 332590, 631921, 665180, 1263842, 1330360, 2527684, 3159605, 5055368, 6319210, 12638420, 25276840]

約数ペア:

[(1, 25276840), (2, 12638420), (4, 6319210), (5, 5055368), (8, 3159605), (10, 2527684), (19, 1330360), (20, 1263842), (38, 665180), (40, 631921), (76, 332590), (79, 319960), (95, 266072), (152, 166295), (158, 159980), (190, 133036), (316, 79990), (380, 66518), (395, 63992), (421, 60040), (632, 39995), (760, 33259), (790, 31996), (842, 30020), (1501, 16840), (1580, 15998), (1684, 15010), (2105, 12008), (3002, 8420), (3160, 7999), (3368, 7505), (4210, 6004)]