31220028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:787

約数の個数: 72

約数和(自身を含む): 90752480

約数和(自身を除く): 59532452

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 229, 252, 458, 541, 687, 916, 1082, 1374, 1603, 1623, 2061, 2164, 2748, 3206, 3246, 3787, 4122, 4809, 4869, 6412, 6492, 7574, 8244, 9618, 9738, 11361, 14427, 15148, 19236, 19476, 22722, 28854, 34083, 45444, 57708, 68166, 123889, 136332, 247778, 371667, 495556, 743334, 867223, 1115001, 1486668, 1734446, 2230002, 2601669, 3468892, 4460004, 5203338, 7805007, 10406676, 15610014, 31220028]

約数ペア:

[(1, 31220028), (2, 15610014), (3, 10406676), (4, 7805007), (6, 5203338), (7, 4460004), (9, 3468892), (12, 2601669), (14, 2230002), (18, 1734446), (21, 1486668), (28, 1115001), (36, 867223), (42, 743334), (63, 495556), (84, 371667), (126, 247778), (229, 136332), (252, 123889), (458, 68166), (541, 57708), (687, 45444), (916, 34083), (1082, 28854), (1374, 22722), (1603, 19476), (1623, 19236), (2061, 15148), (2164, 14427), (2748, 11361), (3206, 9738), (3246, 9618), (3787, 8244), (4122, 7574), (4809, 6492), (4869, 6412)]