81781322

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 153171648

約数和(自身を除く): 71390326

約数列:

[1, 2, 7, 14, 17, 34, 37, 74, 119, 238, 251, 259, 502, 518, 629, 1258, 1369, 1757, 2738, 3514, 4267, 4403, 8534, 8806, 9287, 9583, 18574, 19166, 23273, 29869, 46546, 59738, 65009, 130018, 157879, 162911, 315758, 325822, 343619, 687238, 1105153, 2210306, 2405333, 4810666, 5841523, 11683046, 40890661, 81781322]

約数ペア:

[(1, 81781322), (2, 40890661), (7, 11683046), (14, 5841523), (17, 4810666), (34, 2405333), (37, 2210306), (74, 1105153), (119, 687238), (238, 343619), (251, 325822), (259, 315758), (502, 162911), (518, 157879), (629, 130018), (1258, 65009), (1369, 59738), (1757, 46546), (2738, 29869), (3514, 23273), (4267, 19166), (4403, 18574), (8534, 9583), (8806, 9287)]