20238978760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{505469}}^1$

素因数の和:505511

約数の個数: 128

約数和(自身を含む): 61141651200

約数和(自身を除く): 40902672440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5720, 8008, 10010, 20020, 40040, 505469, 1010938, 2021876, 2527345, 3538283, 4043752, 5054690, 5560159, 6571097, 7076566, 10109380, 11120318, 13142194, 14153132, 17691415, 20218760, 22240636, 26284388, 27800795, 28306264, 32855485, 35382830, 38921113, 44481272, 45997679, 52568776, 55601590, 65710970, 70765660, 72282067, 77842226, 91995358, 111203180, 131421940, 141531320, 144564134, 155684452, 183990716, 194605565, 222406360, 229988395, 262843880, 289128268, 311368904, 361410335, 367981432, 389211130, 459976790, 505974469, 578256536, 722820670, 778422260, 919953580, 1011948938, 1445641340, 1556844520, 1839907160, 2023897876, 2529872345, 2891282680, 4047795752, 5059744690, 10119489380, 20238978760]

約数ペア:

[(1, 20238978760), (2, 10119489380), (4, 5059744690), (5, 4047795752), (7, 2891282680), (8, 2529872345), (10, 2023897876), (11, 1839907160), (13, 1556844520), (14, 1445641340), (20, 1011948938), (22, 919953580), (26, 778422260), (28, 722820670), (35, 578256536), (40, 505974469), (44, 459976790), (52, 389211130), (55, 367981432), (56, 361410335), (65, 311368904), (70, 289128268), (77, 262843880), (88, 229988395), (91, 222406360), (104, 194605565), (110, 183990716), (130, 155684452), (140, 144564134), (143, 141531320), (154, 131421940), (182, 111203180), (220, 91995358), (260, 77842226), (280, 72282067), (286, 70765660), (308, 65710970), (364, 55601590), (385, 52568776), (440, 45997679), (455, 44481272), (520, 38921113), (572, 35382830), (616, 32855485), (715, 28306264), (728, 27800795), (770, 26284388), (910, 22240636), (1001, 20218760), (1144, 17691415), (1430, 14153132), (1540, 13142194), (1820, 11120318), (2002, 10109380), (2860, 7076566), (3080, 6571097), (3640, 5560159), (4004, 5054690), (5005, 4043752), (5720, 3538283), (8008, 2527345), (10010, 2021876), (20020, 1010938), (40040, 505469)]