80231940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1657}}^1$

素因数の和:1941

約数の個数: 72

約数和(自身を含む): 244422360

約数和(自身を除く): 164190420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 269, 538, 807, 1076, 1345, 1614, 1657, 2421, 2690, 3228, 3314, 4035, 4842, 4971, 5380, 6628, 8070, 8285, 9684, 9942, 12105, 14913, 16140, 16570, 19884, 24210, 24855, 29826, 33140, 48420, 49710, 59652, 74565, 99420, 149130, 298260, 445733, 891466, 1337199, 1782932, 2228665, 2674398, 4011597, 4457330, 5348796, 6685995, 8023194, 8914660, 13371990, 16046388, 20057985, 26743980, 40115970, 80231940]

約数ペア:

[(1, 80231940), (2, 40115970), (3, 26743980), (4, 20057985), (5, 16046388), (6, 13371990), (9, 8914660), (10, 8023194), (12, 6685995), (15, 5348796), (18, 4457330), (20, 4011597), (30, 2674398), (36, 2228665), (45, 1782932), (60, 1337199), (90, 891466), (180, 445733), (269, 298260), (538, 149130), (807, 99420), (1076, 74565), (1345, 59652), (1614, 49710), (1657, 48420), (2421, 33140), (2690, 29826), (3228, 24855), (3314, 24210), (4035, 19884), (4842, 16570), (4971, 16140), (5380, 14913), (6628, 12105), (8070, 9942), (8285, 9684)]