17855820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 41898420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 227, 228, 230, 276, 285, 342, 345, 380, 414, 437, 454, 460, 570, 681, 684, 690, 828, 855, 874, 908, 1035, 1135, 1140, 1311, 1362, 1380, 1710, 1748, 2043, 2070, 2185, 2270, 2622, 2724, 3405, 3420, 3933, 4086, 4140, 4313, 4370, 4540, 5221, 5244, 6555, 6810, 7866, 8172, 8626, 8740, 10215, 10442, 12939, 13110, 13620, 15663, 15732, 17252, 19665, 20430, 20884, 21565, 25878, 26105, 26220, 31326, 38817, 39330, 40860, 43130, 46989, 51756, 52210, 62652, 64695, 77634, 78315, 78660, 86260, 93978, 99199, 104420, 129390, 155268, 156630, 187956, 194085, 198398, 234945, 258780, 297597, 313260, 388170, 396796, 469890, 495995, 595194, 776340, 892791, 939780, 991990, 1190388, 1487985, 1785582, 1983980, 2975970, 3571164, 4463955, 5951940, 8927910, 17855820]

約数ペア:

[(1, 17855820), (2, 8927910), (3, 5951940), (4, 4463955), (5, 3571164), (6, 2975970), (9, 1983980), (10, 1785582), (12, 1487985), (15, 1190388), (18, 991990), (19, 939780), (20, 892791), (23, 776340), (30, 595194), (36, 495995), (38, 469890), (45, 396796), (46, 388170), (57, 313260), (60, 297597), (69, 258780), (76, 234945), (90, 198398), (92, 194085), (95, 187956), (114, 156630), (115, 155268), (138, 129390), (171, 104420), (180, 99199), (190, 93978), (207, 86260), (227, 78660), (228, 78315), (230, 77634), (276, 64695), (285, 62652), (342, 52210), (345, 51756), (380, 46989), (414, 43130), (437, 40860), (454, 39330), (460, 38817), (570, 31326), (681, 26220), (684, 26105), (690, 25878), (828, 21565), (855, 20884), (874, 20430), (908, 19665), (1035, 17252), (1135, 15732), (1140, 15663), (1311, 13620), (1362, 13110), (1380, 12939), (1710, 10442), (1748, 10215), (2043, 8740), (2070, 8626), (2185, 8172), (2270, 7866), (2622, 6810), (2724, 6555), (3405, 5244), (3420, 5221), (3933, 4540), (4086, 4370), (4140, 4313)]