128896920

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 192

約数和(自身を含む): 442260000

約数和(自身を除く): 313363080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 89, 90, 108, 120, 135, 149, 162, 178, 180, 216, 243, 267, 270, 298, 324, 356, 360, 405, 445, 447, 486, 534, 540, 596, 648, 712, 745, 801, 810, 890, 894, 972, 1068, 1080, 1192, 1215, 1335, 1341, 1490, 1602, 1620, 1780, 1788, 1944, 2136, 2235, 2403, 2430, 2670, 2682, 2980, 3204, 3240, 3560, 3576, 4005, 4023, 4470, 4806, 4860, 5340, 5364, 5960, 6408, 6705, 7209, 8010, 8046, 8940, 9612, 9720, 10680, 10728, 12015, 12069, 13261, 13410, 14418, 16020, 16092, 17880, 19224, 20115, 21627, 24030, 24138, 26522, 26820, 28836, 32040, 32184, 36045, 36207, 39783, 40230, 43254, 48060, 48276, 53044, 53640, 57672, 60345, 66305, 72090, 72414, 79566, 80460, 86508, 96120, 96552, 106088, 108135, 119349, 120690, 132610, 144180, 144828, 159132, 160920, 173016, 181035, 198915, 216270, 238698, 241380, 265220, 288360, 289656, 318264, 358047, 362070, 397830, 432540, 477396, 482760, 530440, 596745, 716094, 724140, 795660, 865080, 954792, 1074141, 1193490, 1432188, 1448280, 1591320, 1790235, 2148282, 2386980, 2864376, 3222423, 3580470, 4296564, 4773960, 5370705, 6444846, 7160940, 8593128, 10741410, 12889692, 14321880, 16112115, 21482820, 25779384, 32224230, 42965640, 64448460, 128896920]

約数ペア:

[(1, 128896920), (2, 64448460), (3, 42965640), (4, 32224230), (5, 25779384), (6, 21482820), (8, 16112115), (9, 14321880), (10, 12889692), (12, 10741410), (15, 8593128), (18, 7160940), (20, 6444846), (24, 5370705), (27, 4773960), (30, 4296564), (36, 3580470), (40, 3222423), (45, 2864376), (54, 2386980), (60, 2148282), (72, 1790235), (81, 1591320), (89, 1448280), (90, 1432188), (108, 1193490), (120, 1074141), (135, 954792), (149, 865080), (162, 795660), (178, 724140), (180, 716094), (216, 596745), (243, 530440), (267, 482760), (270, 477396), (298, 432540), (324, 397830), (356, 362070), (360, 358047), (405, 318264), (445, 289656), (447, 288360), (486, 265220), (534, 241380), (540, 238698), (596, 216270), (648, 198915), (712, 181035), (745, 173016), (801, 160920), (810, 159132), (890, 144828), (894, 144180), (972, 132610), (1068, 120690), (1080, 119349), (1192, 108135), (1215, 106088), (1335, 96552), (1341, 96120), (1490, 86508), (1602, 80460), (1620, 79566), (1780, 72414), (1788, 72090), (1944, 66305), (2136, 60345), (2235, 57672), (2403, 53640), (2430, 53044), (2670, 48276), (2682, 48060), (2980, 43254), (3204, 40230), (3240, 39783), (3560, 36207), (3576, 36045), (4005, 32184), (4023, 32040), (4470, 28836), (4806, 26820), (4860, 26522), (5340, 24138), (5364, 24030), (5960, 21627), (6408, 20115), (6705, 19224), (7209, 17880), (8010, 16092), (8046, 16020), (8940, 14418), (9612, 13410), (9720, 13261), (10680, 12069), (10728, 12015)]