31253480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 81648000

約数和(自身を除く): 50394520

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 41, 59, 68, 76, 82, 85, 95, 118, 136, 152, 164, 170, 190, 205, 236, 295, 323, 328, 340, 380, 410, 472, 590, 646, 680, 697, 760, 779, 820, 1003, 1121, 1180, 1292, 1394, 1558, 1615, 1640, 2006, 2242, 2360, 2419, 2584, 2788, 3116, 3230, 3485, 3895, 4012, 4484, 4838, 5015, 5576, 5605, 6232, 6460, 6970, 7790, 8024, 8968, 9676, 10030, 11210, 12095, 12920, 13243, 13940, 15580, 19057, 19352, 20060, 22420, 24190, 26486, 27880, 31160, 38114, 40120, 41123, 44840, 45961, 48380, 52972, 66215, 76228, 82246, 91922, 95285, 96760, 105944, 132430, 152456, 164492, 183844, 190570, 205615, 229805, 264860, 328984, 367688, 381140, 411230, 459610, 529720, 762280, 781337, 822460, 919220, 1562674, 1644920, 1838440, 3125348, 3906685, 6250696, 7813370, 15626740, 31253480]

約数ペア:

[(1, 31253480), (2, 15626740), (4, 7813370), (5, 6250696), (8, 3906685), (10, 3125348), (17, 1838440), (19, 1644920), (20, 1562674), (34, 919220), (38, 822460), (40, 781337), (41, 762280), (59, 529720), (68, 459610), (76, 411230), (82, 381140), (85, 367688), (95, 328984), (118, 264860), (136, 229805), (152, 205615), (164, 190570), (170, 183844), (190, 164492), (205, 152456), (236, 132430), (295, 105944), (323, 96760), (328, 95285), (340, 91922), (380, 82246), (410, 76228), (472, 66215), (590, 52972), (646, 48380), (680, 45961), (697, 44840), (760, 41123), (779, 40120), (820, 38114), (1003, 31160), (1121, 27880), (1180, 26486), (1292, 24190), (1394, 22420), (1558, 20060), (1615, 19352), (1640, 19057), (2006, 15580), (2242, 13940), (2360, 13243), (2419, 12920), (2584, 12095), (2788, 11210), (3116, 10030), (3230, 9676), (3485, 8968), (3895, 8024), (4012, 7790), (4484, 6970), (4838, 6460), (5015, 6232), (5576, 5605)]