20189988120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{22963}}^1$

素因数の和:23425

約数の個数: 128

約数和(自身を含む): 64284503040

約数和(自身を除く): 44094514920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 431, 510, 680, 862, 1020, 1293, 1724, 2040, 2155, 2586, 3448, 4310, 5172, 6465, 7327, 8620, 10344, 12930, 14654, 17240, 21981, 22963, 25860, 29308, 36635, 43962, 45926, 51720, 58616, 68889, 73270, 87924, 91852, 109905, 114815, 137778, 146540, 175848, 183704, 219810, 229630, 275556, 293080, 344445, 390371, 439620, 459260, 551112, 688890, 780742, 879240, 918520, 1171113, 1377780, 1561484, 1951855, 2342226, 2755560, 3122968, 3903710, 4684452, 5855565, 7807420, 9368904, 9897053, 11711130, 15614840, 19794106, 23422260, 29691159, 39588212, 46844520, 49485265, 59382318, 79176424, 98970530, 118764636, 148455795, 168249901, 197941060, 237529272, 296911590, 336499802, 395882120, 504749703, 593823180, 672999604, 841249505, 1009499406, 1187646360, 1345999208, 1682499010, 2018998812, 2523748515, 3364998020, 4037997624, 5047497030, 6729996040, 10094994060, 20189988120]

約数ペア:

[(1, 20189988120), (2, 10094994060), (3, 6729996040), (4, 5047497030), (5, 4037997624), (6, 3364998020), (8, 2523748515), (10, 2018998812), (12, 1682499010), (15, 1345999208), (17, 1187646360), (20, 1009499406), (24, 841249505), (30, 672999604), (34, 593823180), (40, 504749703), (51, 395882120), (60, 336499802), (68, 296911590), (85, 237529272), (102, 197941060), (120, 168249901), (136, 148455795), (170, 118764636), (204, 98970530), (255, 79176424), (340, 59382318), (408, 49485265), (431, 46844520), (510, 39588212), (680, 29691159), (862, 23422260), (1020, 19794106), (1293, 15614840), (1724, 11711130), (2040, 9897053), (2155, 9368904), (2586, 7807420), (3448, 5855565), (4310, 4684452), (5172, 3903710), (6465, 3122968), (7327, 2755560), (8620, 2342226), (10344, 1951855), (12930, 1561484), (14654, 1377780), (17240, 1171113), (21981, 918520), (22963, 879240), (25860, 780742), (29308, 688890), (36635, 551112), (43962, 459260), (45926, 439620), (51720, 390371), (58616, 344445), (68889, 293080), (73270, 275556), (87924, 229630), (91852, 219810), (109905, 183704), (114815, 175848), (137778, 146540)]