20202552760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{1889}}^1$

素因数の和:2201

約数の個数: 128

約数和(自身を含む): 49666478400

約数和(自身を除く): 29463925640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 157, 260, 262, 314, 520, 524, 628, 655, 785, 1048, 1256, 1310, 1570, 1703, 1889, 2041, 2620, 3140, 3406, 3778, 4082, 5240, 6280, 6812, 7556, 8164, 8515, 9445, 10205, 13624, 15112, 16328, 17030, 18890, 20410, 20567, 24557, 34060, 37780, 40820, 41134, 49114, 68120, 75560, 81640, 82268, 98228, 102835, 122785, 164536, 196456, 205670, 245570, 247459, 267371, 296573, 411340, 491140, 494918, 534742, 593146, 822680, 982280, 989836, 1069484, 1186292, 1237295, 1336855, 1482865, 1979672, 2138968, 2372584, 2474590, 2673710, 2965730, 3216967, 3855449, 4949180, 5347420, 5931460, 6433934, 7710898, 9898360, 10694840, 11862920, 12867868, 15421796, 16084835, 19277245, 25735736, 30843592, 32169670, 38554490, 38851063, 64339340, 77108980, 77702126, 128678680, 154217960, 155404252, 194255315, 310808504, 388510630, 505063819, 777021260, 1010127638, 1554042520, 2020255276, 2525319095, 4040510552, 5050638190, 10101276380, 20202552760]

約数ペア:

[(1, 20202552760), (2, 10101276380), (4, 5050638190), (5, 4040510552), (8, 2525319095), (10, 2020255276), (13, 1554042520), (20, 1010127638), (26, 777021260), (40, 505063819), (52, 388510630), (65, 310808504), (104, 194255315), (130, 155404252), (131, 154217960), (157, 128678680), (260, 77702126), (262, 77108980), (314, 64339340), (520, 38851063), (524, 38554490), (628, 32169670), (655, 30843592), (785, 25735736), (1048, 19277245), (1256, 16084835), (1310, 15421796), (1570, 12867868), (1703, 11862920), (1889, 10694840), (2041, 9898360), (2620, 7710898), (3140, 6433934), (3406, 5931460), (3778, 5347420), (4082, 4949180), (5240, 3855449), (6280, 3216967), (6812, 2965730), (7556, 2673710), (8164, 2474590), (8515, 2372584), (9445, 2138968), (10205, 1979672), (13624, 1482865), (15112, 1336855), (16328, 1237295), (17030, 1186292), (18890, 1069484), (20410, 989836), (20567, 982280), (24557, 822680), (34060, 593146), (37780, 534742), (40820, 494918), (41134, 491140), (49114, 411340), (68120, 296573), (75560, 267371), (81640, 247459), (82268, 245570), (98228, 205670), (102835, 196456), (122785, 164536)]