20153996720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{7561}}^1$

素因数の和:7831

約数の個数: 160

約数和(自身を含む): 55293585984

約数和(自身を除く): 35139589264

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 233, 260, 286, 440, 466, 520, 572, 715, 880, 932, 1040, 1144, 1165, 1430, 1864, 2288, 2330, 2563, 2860, 3029, 3728, 4660, 5126, 5720, 6058, 7561, 9320, 10252, 11440, 12116, 12815, 15122, 15145, 18640, 20504, 24232, 25630, 30244, 30290, 33319, 37805, 41008, 48464, 51260, 60488, 60580, 66638, 75610, 83171, 98293, 102520, 120976, 121160, 133276, 151220, 166342, 166595, 196586, 205040, 242320, 266552, 302440, 332684, 333190, 393172, 415855, 491465, 533104, 604880, 665368, 666380, 786344, 831710, 982930, 1081223, 1330736, 1332760, 1572688, 1663420, 1761713, 1965860, 2162446, 2665520, 3326840, 3523426, 3931720, 4324892, 5406115, 6653680, 7046852, 7863440, 8649784, 8808565, 10812230, 14093704, 17299568, 17617130, 19378843, 21624460, 22902269, 28187408, 35234260, 38757686, 43248920, 45804538, 70468520, 77515372, 86497840, 91609076, 96894215, 114511345, 140937040, 155030744, 183218152, 193788430, 229022690, 251924959, 310061488, 366436304, 387576860, 458045380, 503849918, 775153720, 916090760, 1007699836, 1259624795, 1550307440, 1832181520, 2015399672, 2519249590, 4030799344, 5038499180, 10076998360, 20153996720]

約数ペア:

[(1, 20153996720), (2, 10076998360), (4, 5038499180), (5, 4030799344), (8, 2519249590), (10, 2015399672), (11, 1832181520), (13, 1550307440), (16, 1259624795), (20, 1007699836), (22, 916090760), (26, 775153720), (40, 503849918), (44, 458045380), (52, 387576860), (55, 366436304), (65, 310061488), (80, 251924959), (88, 229022690), (104, 193788430), (110, 183218152), (130, 155030744), (143, 140937040), (176, 114511345), (208, 96894215), (220, 91609076), (233, 86497840), (260, 77515372), (286, 70468520), (440, 45804538), (466, 43248920), (520, 38757686), (572, 35234260), (715, 28187408), (880, 22902269), (932, 21624460), (1040, 19378843), (1144, 17617130), (1165, 17299568), (1430, 14093704), (1864, 10812230), (2288, 8808565), (2330, 8649784), (2563, 7863440), (2860, 7046852), (3029, 6653680), (3728, 5406115), (4660, 4324892), (5126, 3931720), (5720, 3523426), (6058, 3326840), (7561, 2665520), (9320, 2162446), (10252, 1965860), (11440, 1761713), (12116, 1663420), (12815, 1572688), (15122, 1332760), (15145, 1330736), (18640, 1081223), (20504, 982930), (24232, 831710), (25630, 786344), (30244, 666380), (30290, 665368), (33319, 604880), (37805, 533104), (41008, 491465), (48464, 415855), (51260, 393172), (60488, 333190), (60580, 332684), (66638, 302440), (75610, 266552), (83171, 242320), (98293, 205040), (102520, 196586), (120976, 166595), (121160, 166342), (133276, 151220)]