81663669820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1\times {\mathrm{3533}}^1$

素因数の和:4135

約数の個数: 96

約数和(自身を含む): 181034663040

約数和(自身を除く): 99370993220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 461, 545, 922, 1090, 1844, 2180, 2305, 2507, 3533, 4610, 5014, 7066, 9220, 10028, 10603, 12535, 14132, 17665, 21206, 25070, 35330, 42412, 50140, 50249, 53015, 70660, 81259, 100498, 106030, 162518, 200996, 212060, 251245, 325036, 385097, 406295, 502490, 770194, 812590, 1004980, 1155727, 1540388, 1625180, 1628713, 1925485, 2311454, 3257426, 3850970, 4622908, 5778635, 6514852, 7701940, 8143565, 8857231, 11557270, 16287130, 17714462, 23114540, 32574260, 35428924, 37460399, 44286155, 74920798, 88572310, 149841596, 177144620, 177529717, 187301995, 355059434, 374603990, 710118868, 749207980, 887648585, 1775297170, 3550594340, 4083183491, 8166366982, 16332733964, 20415917455, 40831834910, 81663669820]

約数ペア:

[(1, 81663669820), (2, 40831834910), (4, 20415917455), (5, 16332733964), (10, 8166366982), (20, 4083183491), (23, 3550594340), (46, 1775297170), (92, 887648585), (109, 749207980), (115, 710118868), (218, 374603990), (230, 355059434), (436, 187301995), (460, 177529717), (461, 177144620), (545, 149841596), (922, 88572310), (1090, 74920798), (1844, 44286155), (2180, 37460399), (2305, 35428924), (2507, 32574260), (3533, 23114540), (4610, 17714462), (5014, 16287130), (7066, 11557270), (9220, 8857231), (10028, 8143565), (10603, 7701940), (12535, 6514852), (14132, 5778635), (17665, 4622908), (21206, 3850970), (25070, 3257426), (35330, 2311454), (42412, 1925485), (50140, 1628713), (50249, 1625180), (53015, 1540388), (70660, 1155727), (81259, 1004980), (100498, 812590), (106030, 770194), (162518, 502490), (200996, 406295), (212060, 385097), (251245, 325036)]