28897740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4339}}^1$

素因数の和:4391

約数の個数: 72

約数和(自身を含む): 90046320

約数和(自身を除く): 61148580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 4339, 6660, 8678, 13017, 17356, 21695, 26034, 39051, 43390, 52068, 65085, 78102, 86780, 130170, 156204, 160543, 195255, 260340, 321086, 390510, 481629, 642172, 781020, 802715, 963258, 1444887, 1605430, 1926516, 2408145, 2889774, 3210860, 4816290, 5779548, 7224435, 9632580, 14448870, 28897740]

約数ペア:

[(1, 28897740), (2, 14448870), (3, 9632580), (4, 7224435), (5, 5779548), (6, 4816290), (9, 3210860), (10, 2889774), (12, 2408145), (15, 1926516), (18, 1605430), (20, 1444887), (30, 963258), (36, 802715), (37, 781020), (45, 642172), (60, 481629), (74, 390510), (90, 321086), (111, 260340), (148, 195255), (180, 160543), (185, 156204), (222, 130170), (333, 86780), (370, 78102), (444, 65085), (555, 52068), (666, 43390), (740, 39051), (1110, 26034), (1332, 21695), (1665, 17356), (2220, 13017), (3330, 8678), (4339, 6660)]