71345740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 154695744

約数和(自身を除く): 83350004

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 167, 205, 334, 410, 521, 668, 820, 835, 1042, 1670, 2084, 2605, 3340, 5210, 6847, 10420, 13694, 21361, 27388, 34235, 42722, 68470, 85444, 87007, 106805, 136940, 174014, 213610, 348028, 427220, 435035, 870070, 1740140, 3567287, 7134574, 14269148, 17836435, 35672870, 71345740]

約数ペア:

[(1, 71345740), (2, 35672870), (4, 17836435), (5, 14269148), (10, 7134574), (20, 3567287), (41, 1740140), (82, 870070), (164, 435035), (167, 427220), (205, 348028), (334, 213610), (410, 174014), (521, 136940), (668, 106805), (820, 87007), (835, 85444), (1042, 68470), (1670, 42722), (2084, 34235), (2605, 27388), (3340, 21361), (5210, 13694), (6847, 10420)]