19987271640

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{881273}}^1$

素因数の和:881303

約数の個数: 160

約数和(自身を含む): 76776590880

約数和(自身を除く): 56789319240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3780, 4536, 5670, 7560, 11340, 22680, 881273, 1762546, 2643819, 3525092, 4406365, 5287638, 6168911, 7050184, 7931457, 8812730, 10575276, 12337822, 13219095, 15862914, 17625460, 18506733, 21150552, 23794371, 24675644, 26438190, 30844555, 31725828, 35250920, 37013466, 39657285, 47588742, 49351288, 52876380, 55520199, 61689110, 63451656, 71383113, 74026932, 79314570, 92533665, 95177484, 105752760, 111040398, 118971855, 123378220, 142766226, 148053864, 158629140, 166560597, 185067330, 190354968, 222080796, 237943710, 246756440, 277600995, 285532452, 317258280, 333121194, 356915565, 370134660, 444161592, 475887420, 499681791, 555201990, 571064904, 666242388, 713831130, 740269320, 832802985, 951774840, 999363582, 1110403980, 1332484776, 1427662260, 1665605970, 1998727164, 2220807960, 2498408955, 2855324520, 3331211940, 3997454328, 4996817910, 6662423880, 9993635820, 19987271640]

約数ペア:

[(1, 19987271640), (2, 9993635820), (3, 6662423880), (4, 4996817910), (5, 3997454328), (6, 3331211940), (7, 2855324520), (8, 2498408955), (9, 2220807960), (10, 1998727164), (12, 1665605970), (14, 1427662260), (15, 1332484776), (18, 1110403980), (20, 999363582), (21, 951774840), (24, 832802985), (27, 740269320), (28, 713831130), (30, 666242388), (35, 571064904), (36, 555201990), (40, 499681791), (42, 475887420), (45, 444161592), (54, 370134660), (56, 356915565), (60, 333121194), (63, 317258280), (70, 285532452), (72, 277600995), (81, 246756440), (84, 237943710), (90, 222080796), (105, 190354968), (108, 185067330), (120, 166560597), (126, 158629140), (135, 148053864), (140, 142766226), (162, 123378220), (168, 118971855), (180, 111040398), (189, 105752760), (210, 95177484), (216, 92533665), (252, 79314570), (270, 74026932), (280, 71383113), (315, 63451656), (324, 61689110), (360, 55520199), (378, 52876380), (405, 49351288), (420, 47588742), (504, 39657285), (540, 37013466), (567, 35250920), (630, 31725828), (648, 30844555), (756, 26438190), (810, 24675644), (840, 23794371), (945, 21150552), (1080, 18506733), (1134, 17625460), (1260, 15862914), (1512, 13219095), (1620, 12337822), (1890, 10575276), (2268, 8812730), (2520, 7931457), (2835, 7050184), (3240, 6168911), (3780, 5287638), (4536, 4406365), (5670, 3525092), (7560, 2643819), (11340, 1762546), (22680, 881273)]