67481720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 156492000

約数和(自身を除く): 89010280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 139, 212, 229, 265, 278, 424, 458, 530, 556, 695, 916, 1060, 1112, 1145, 1390, 1832, 2120, 2290, 2780, 4580, 5560, 7367, 9160, 12137, 14734, 24274, 29468, 31831, 36835, 48548, 58936, 60685, 63662, 73670, 97096, 121370, 127324, 147340, 159155, 242740, 254648, 294680, 318310, 485480, 636620, 1273240, 1687043, 3374086, 6748172, 8435215, 13496344, 16870430, 33740860, 67481720]

約数ペア:

[(1, 67481720), (2, 33740860), (4, 16870430), (5, 13496344), (8, 8435215), (10, 6748172), (20, 3374086), (40, 1687043), (53, 1273240), (106, 636620), (139, 485480), (212, 318310), (229, 294680), (265, 254648), (278, 242740), (424, 159155), (458, 147340), (530, 127324), (556, 121370), (695, 97096), (916, 73670), (1060, 63662), (1112, 60685), (1145, 58936), (1390, 48548), (1832, 36835), (2120, 31831), (2290, 29468), (2780, 24274), (4580, 14734), (5560, 12137), (7367, 9160)]