181311560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2003}}^1$

素因数の和:2118

約数の個数: 64

約数和(自身を含む): 427092480

約数和(自身を除く): 245780920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 584, 620, 730, 1240, 1460, 2003, 2263, 2920, 4006, 4526, 8012, 9052, 10015, 11315, 16024, 18104, 20030, 22630, 40060, 45260, 62093, 80120, 90520, 124186, 146219, 248372, 292438, 310465, 496744, 584876, 620930, 731095, 1169752, 1241860, 1462190, 2483720, 2924380, 4532789, 5848760, 9065578, 18131156, 22663945, 36262312, 45327890, 90655780, 181311560]

約数ペア:

[(1, 181311560), (2, 90655780), (4, 45327890), (5, 36262312), (8, 22663945), (10, 18131156), (20, 9065578), (31, 5848760), (40, 4532789), (62, 2924380), (73, 2483720), (124, 1462190), (146, 1241860), (155, 1169752), (248, 731095), (292, 620930), (310, 584876), (365, 496744), (584, 310465), (620, 292438), (730, 248372), (1240, 146219), (1460, 124186), (2003, 90520), (2263, 80120), (2920, 62093), (4006, 45260), (4526, 40060), (8012, 22630), (9052, 20030), (10015, 18104), (11315, 16024)]