19677018640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{67777}}^1$

素因数の和:68000

約数の個数: 80

約数和(自身を含む): 48409758720

約数和(自身を除く): 28732740080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 191, 304, 380, 382, 760, 764, 955, 1520, 1528, 1910, 3056, 3629, 3820, 7258, 7640, 14516, 15280, 18145, 29032, 36290, 58064, 67777, 72580, 135554, 145160, 271108, 290320, 338885, 542216, 677770, 1084432, 1287763, 1355540, 2575526, 2711080, 5151052, 5422160, 6438815, 10302104, 12877630, 12945407, 20604208, 25755260, 25890814, 51510520, 51781628, 64727035, 103021040, 103563256, 129454070, 207126512, 245962733, 258908140, 491925466, 517816280, 983850932, 1035632560, 1229813665, 1967701864, 2459627330, 3935403728, 4919254660, 9838509320, 19677018640]

約数ペア:

[(1, 19677018640), (2, 9838509320), (4, 4919254660), (5, 3935403728), (8, 2459627330), (10, 1967701864), (16, 1229813665), (19, 1035632560), (20, 983850932), (38, 517816280), (40, 491925466), (76, 258908140), (80, 245962733), (95, 207126512), (152, 129454070), (190, 103563256), (191, 103021040), (304, 64727035), (380, 51781628), (382, 51510520), (760, 25890814), (764, 25755260), (955, 20604208), (1520, 12945407), (1528, 12877630), (1910, 10302104), (3056, 6438815), (3629, 5422160), (3820, 5151052), (7258, 2711080), (7640, 2575526), (14516, 1355540), (15280, 1287763), (18145, 1084432), (29032, 677770), (36290, 542216), (58064, 338885), (67777, 290320), (72580, 271108), (135554, 145160)]