78903460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{971}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 176359680

約数和(自身を除く): 97456220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 971, 1195, 1942, 2390, 3884, 4063, 4780, 4855, 8126, 9710, 16252, 16507, 19420, 20315, 33014, 40630, 66028, 81260, 82535, 165070, 232069, 330140, 464138, 928276, 1160345, 2320690, 3945173, 4641380, 7890346, 15780692, 19725865, 39451730, 78903460]

約数ペア:

[(1, 78903460), (2, 39451730), (4, 19725865), (5, 15780692), (10, 7890346), (17, 4641380), (20, 3945173), (34, 2320690), (68, 1160345), (85, 928276), (170, 464138), (239, 330140), (340, 232069), (478, 165070), (956, 82535), (971, 81260), (1195, 66028), (1942, 40630), (2390, 33014), (3884, 20315), (4063, 19420), (4780, 16507), (4855, 16252), (8126, 9710)]