163865720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{607}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 392014080

約数和(自身を除く): 228148360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 397, 607, 680, 794, 1214, 1588, 1985, 2428, 3035, 3176, 3970, 4856, 6070, 6749, 7940, 10319, 12140, 13498, 15880, 20638, 24280, 26996, 33745, 41276, 51595, 53992, 67490, 82552, 103190, 134980, 206380, 240979, 269960, 412760, 481958, 963916, 1204895, 1927832, 2409790, 4096643, 4819580, 8193286, 9639160, 16386572, 20483215, 32773144, 40966430, 81932860, 163865720]

約数ペア:

[(1, 163865720), (2, 81932860), (4, 40966430), (5, 32773144), (8, 20483215), (10, 16386572), (17, 9639160), (20, 8193286), (34, 4819580), (40, 4096643), (68, 2409790), (85, 1927832), (136, 1204895), (170, 963916), (340, 481958), (397, 412760), (607, 269960), (680, 240979), (794, 206380), (1214, 134980), (1588, 103190), (1985, 82552), (2428, 67490), (3035, 53992), (3176, 51595), (3970, 41276), (4856, 33745), (6070, 26996), (6749, 24280), (7940, 20638), (10319, 15880), (12140, 13498)]