18262980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:677

約数の個数: 72

約数和(自身を含む): 55759704

約数和(自身を除く): 37496724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 421, 482, 723, 842, 964, 1205, 1263, 1446, 1684, 2105, 2169, 2410, 2526, 2892, 3615, 3789, 4210, 4338, 4820, 5052, 6315, 7230, 7578, 8420, 8676, 10845, 12630, 14460, 15156, 18945, 21690, 25260, 37890, 43380, 75780, 101461, 202922, 304383, 405844, 507305, 608766, 913149, 1014610, 1217532, 1521915, 1826298, 2029220, 3043830, 3652596, 4565745, 6087660, 9131490, 18262980]

約数ペア:

[(1, 18262980), (2, 9131490), (3, 6087660), (4, 4565745), (5, 3652596), (6, 3043830), (9, 2029220), (10, 1826298), (12, 1521915), (15, 1217532), (18, 1014610), (20, 913149), (30, 608766), (36, 507305), (45, 405844), (60, 304383), (90, 202922), (180, 101461), (241, 75780), (421, 43380), (482, 37890), (723, 25260), (842, 21690), (964, 18945), (1205, 15156), (1263, 14460), (1446, 12630), (1684, 10845), (2105, 8676), (2169, 8420), (2410, 7578), (2526, 7230), (2892, 6315), (3615, 5052), (3789, 4820), (4210, 4338)]