31429640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 78477120

約数和(自身を除く): 47047480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1171, 1220, 1342, 2342, 2440, 2684, 3355, 4684, 5368, 5855, 6710, 9368, 11710, 12881, 13420, 23420, 25762, 26840, 46840, 51524, 64405, 71431, 103048, 128810, 142862, 257620, 285724, 357155, 515240, 571448, 714310, 785741, 1428620, 1571482, 2857240, 3142964, 3928705, 6285928, 7857410, 15714820, 31429640]

約数ペア:

[(1, 31429640), (2, 15714820), (4, 7857410), (5, 6285928), (8, 3928705), (10, 3142964), (11, 2857240), (20, 1571482), (22, 1428620), (40, 785741), (44, 714310), (55, 571448), (61, 515240), (88, 357155), (110, 285724), (122, 257620), (220, 142862), (244, 128810), (305, 103048), (440, 71431), (488, 64405), (610, 51524), (671, 46840), (1171, 26840), (1220, 25762), (1342, 23420), (2342, 13420), (2440, 12881), (2684, 11710), (3355, 9368), (4684, 6710), (5368, 5855)]