61981020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2311}}^1$

素因数の和:2475

約数の個数: 72

約数和(自身を含む): 189352800

約数和(自身を除く): 127371780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1490, 1788, 2235, 2311, 2682, 2980, 4470, 4622, 5364, 6705, 6933, 8940, 9244, 11555, 13410, 13866, 20799, 23110, 26820, 27732, 34665, 41598, 46220, 69330, 83196, 103995, 138660, 207990, 344339, 415980, 688678, 1033017, 1377356, 1721695, 2066034, 3099051, 3443390, 4132068, 5165085, 6198102, 6886780, 10330170, 12396204, 15495255, 20660340, 30990510, 61981020]

約数ペア:

[(1, 61981020), (2, 30990510), (3, 20660340), (4, 15495255), (5, 12396204), (6, 10330170), (9, 6886780), (10, 6198102), (12, 5165085), (15, 4132068), (18, 3443390), (20, 3099051), (30, 2066034), (36, 1721695), (45, 1377356), (60, 1033017), (90, 688678), (149, 415980), (180, 344339), (298, 207990), (447, 138660), (596, 103995), (745, 83196), (894, 69330), (1341, 46220), (1490, 41598), (1788, 34665), (2235, 27732), (2311, 26820), (2682, 23110), (2980, 20799), (4470, 13866), (4622, 13410), (5364, 11555), (6705, 9244), (6933, 8940)]