278902370

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 540393984

約数和(自身を除く): 261491614

約数列:

[1, 2, 5, 10, 23, 46, 61, 103, 115, 122, 193, 206, 230, 305, 386, 515, 610, 965, 1030, 1403, 1930, 2369, 2806, 4439, 4738, 6283, 7015, 8878, 11773, 11845, 12566, 14030, 19879, 22195, 23546, 23690, 31415, 39758, 44390, 58865, 62830, 99395, 117730, 144509, 198790, 270779, 289018, 457217, 541558, 722545, 914434, 1212619, 1353895, 1445090, 2286085, 2425238, 2707790, 4572170, 6063095, 12126190, 27890237, 55780474, 139451185, 278902370]

約数ペア:

[(1, 278902370), (2, 139451185), (5, 55780474), (10, 27890237), (23, 12126190), (46, 6063095), (61, 4572170), (103, 2707790), (115, 2425238), (122, 2286085), (193, 1445090), (206, 1353895), (230, 1212619), (305, 914434), (386, 722545), (515, 541558), (610, 457217), (965, 289018), (1030, 270779), (1403, 198790), (1930, 144509), (2369, 117730), (2806, 99395), (4439, 62830), (4738, 58865), (6283, 44390), (7015, 39758), (8878, 31415), (11773, 23690), (11845, 23546), (12566, 22195), (14030, 19879)]