13158340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 31820040

約数和(自身を除く): 18661700

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 229, 260, 338, 340, 442, 458, 676, 845, 884, 916, 1105, 1145, 1690, 2210, 2290, 2873, 2977, 3380, 3893, 4420, 4580, 5746, 5954, 7786, 11492, 11908, 14365, 14885, 15572, 19465, 28730, 29770, 38701, 38930, 50609, 57460, 59540, 77402, 77860, 101218, 154804, 193505, 202436, 253045, 387010, 506090, 657917, 774020, 1012180, 1315834, 2631668, 3289585, 6579170, 13158340]

約数ペア:

[(1, 13158340), (2, 6579170), (4, 3289585), (5, 2631668), (10, 1315834), (13, 1012180), (17, 774020), (20, 657917), (26, 506090), (34, 387010), (52, 253045), (65, 202436), (68, 193505), (85, 154804), (130, 101218), (169, 77860), (170, 77402), (221, 59540), (229, 57460), (260, 50609), (338, 38930), (340, 38701), (442, 29770), (458, 28730), (676, 19465), (845, 15572), (884, 14885), (916, 14365), (1105, 11908), (1145, 11492), (1690, 7786), (2210, 5954), (2290, 5746), (2873, 4580), (2977, 4420), (3380, 3893)]