988897520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{829}}^1$

素因数の和:923

約数の個数: 160

約数和(自身を含む): 2628165120

約数和(自身を除く): 1639267600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 37, 40, 52, 62, 65, 74, 80, 104, 124, 130, 148, 155, 185, 208, 248, 260, 296, 310, 370, 403, 481, 496, 520, 592, 620, 740, 806, 829, 962, 1040, 1147, 1240, 1480, 1612, 1658, 1924, 2015, 2294, 2405, 2480, 2960, 3224, 3316, 3848, 4030, 4145, 4588, 4810, 5735, 6448, 6632, 7696, 8060, 8290, 9176, 9620, 10777, 11470, 13264, 14911, 16120, 16580, 18352, 19240, 21554, 22940, 25699, 29822, 30673, 32240, 33160, 38480, 43108, 45880, 51398, 53885, 59644, 61346, 66320, 74555, 86216, 91760, 102796, 107770, 119288, 122692, 128495, 149110, 153365, 172432, 205592, 215540, 238576, 245384, 256990, 298220, 306730, 334087, 398749, 411184, 431080, 490768, 513980, 596440, 613460, 668174, 797498, 862160, 950863, 1027960, 1192880, 1226920, 1336348, 1594996, 1670435, 1901726, 1993745, 2055920, 2453840, 2672696, 3189992, 3340870, 3803452, 3987490, 4754315, 5345392, 6379984, 6681740, 7606904, 7974980, 9508630, 12361219, 13363480, 15213808, 15949960, 19017260, 24722438, 26726960, 31899920, 38034520, 49444876, 61806095, 76069040, 98889752, 123612190, 197779504, 247224380, 494448760, 988897520]

約数ペア:

[(1, 988897520), (2, 494448760), (4, 247224380), (5, 197779504), (8, 123612190), (10, 98889752), (13, 76069040), (16, 61806095), (20, 49444876), (26, 38034520), (31, 31899920), (37, 26726960), (40, 24722438), (52, 19017260), (62, 15949960), (65, 15213808), (74, 13363480), (80, 12361219), (104, 9508630), (124, 7974980), (130, 7606904), (148, 6681740), (155, 6379984), (185, 5345392), (208, 4754315), (248, 3987490), (260, 3803452), (296, 3340870), (310, 3189992), (370, 2672696), (403, 2453840), (481, 2055920), (496, 1993745), (520, 1901726), (592, 1670435), (620, 1594996), (740, 1336348), (806, 1226920), (829, 1192880), (962, 1027960), (1040, 950863), (1147, 862160), (1240, 797498), (1480, 668174), (1612, 613460), (1658, 596440), (1924, 513980), (2015, 490768), (2294, 431080), (2405, 411184), (2480, 398749), (2960, 334087), (3224, 306730), (3316, 298220), (3848, 256990), (4030, 245384), (4145, 238576), (4588, 215540), (4810, 205592), (5735, 172432), (6448, 153365), (6632, 149110), (7696, 128495), (8060, 122692), (8290, 119288), (9176, 107770), (9620, 102796), (10777, 91760), (11470, 86216), (13264, 74555), (14911, 66320), (16120, 61346), (16580, 59644), (18352, 53885), (19240, 51398), (21554, 45880), (22940, 43108), (25699, 38480), (29822, 33160), (30673, 32240)]