1640764520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 3997952640

約数和(自身を除く): 2357188120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 113, 131, 136, 163, 170, 226, 262, 326, 340, 452, 524, 565, 652, 655, 680, 815, 904, 1048, 1130, 1304, 1310, 1630, 1921, 2227, 2260, 2620, 2771, 3260, 3842, 4454, 4520, 5240, 5542, 6520, 7684, 8908, 9605, 11084, 11135, 13855, 14803, 15368, 17816, 18419, 19210, 21353, 22168, 22270, 27710, 29606, 36838, 38420, 42706, 44540, 55420, 59212, 73676, 74015, 76840, 85412, 89080, 92095, 106765, 110840, 118424, 147352, 148030, 170824, 184190, 213530, 251651, 296060, 313123, 363001, 368380, 427060, 503302, 592120, 626246, 726002, 736760, 854120, 1006604, 1252492, 1258255, 1452004, 1565615, 1815005, 2013208, 2412889, 2504984, 2516510, 2904008, 3131230, 3630010, 4825778, 5033020, 6262460, 7260020, 9651556, 10066040, 12064445, 12524920, 14520040, 19303112, 24128890, 41019113, 48257780, 82038226, 96515560, 164076452, 205095565, 328152904, 410191130, 820382260, 1640764520]

約数ペア:

[(1, 1640764520), (2, 820382260), (4, 410191130), (5, 328152904), (8, 205095565), (10, 164076452), (17, 96515560), (20, 82038226), (34, 48257780), (40, 41019113), (68, 24128890), (85, 19303112), (113, 14520040), (131, 12524920), (136, 12064445), (163, 10066040), (170, 9651556), (226, 7260020), (262, 6262460), (326, 5033020), (340, 4825778), (452, 3630010), (524, 3131230), (565, 2904008), (652, 2516510), (655, 2504984), (680, 2412889), (815, 2013208), (904, 1815005), (1048, 1565615), (1130, 1452004), (1304, 1258255), (1310, 1252492), (1630, 1006604), (1921, 854120), (2227, 736760), (2260, 726002), (2620, 626246), (2771, 592120), (3260, 503302), (3842, 427060), (4454, 368380), (4520, 363001), (5240, 313123), (5542, 296060), (6520, 251651), (7684, 213530), (8908, 184190), (9605, 170824), (11084, 148030), (11135, 147352), (13855, 118424), (14803, 110840), (15368, 106765), (17816, 92095), (18419, 89080), (19210, 85412), (21353, 76840), (22168, 74015), (22270, 73676), (27710, 59212), (29606, 55420), (36838, 44540), (38420, 42706)]