20770380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 68402880

約数和(自身を除く): 47632500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 29, 30, 36, 45, 46, 58, 60, 69, 87, 90, 92, 115, 116, 138, 145, 173, 174, 180, 207, 230, 261, 276, 290, 345, 346, 348, 414, 435, 460, 519, 522, 580, 667, 690, 692, 828, 865, 870, 1035, 1038, 1044, 1305, 1334, 1380, 1557, 1730, 1740, 2001, 2070, 2076, 2595, 2610, 2668, 3114, 3335, 3460, 3979, 4002, 4140, 5017, 5190, 5220, 6003, 6228, 6670, 7785, 7958, 8004, 10005, 10034, 10380, 11937, 12006, 13340, 15051, 15570, 15916, 19895, 20010, 20068, 23874, 24012, 25085, 30015, 30102, 31140, 35811, 39790, 40020, 45153, 47748, 50170, 59685, 60030, 60204, 71622, 75255, 79580, 90306, 100340, 115391, 119370, 120060, 143244, 150510, 179055, 180612, 225765, 230782, 238740, 301020, 346173, 358110, 451530, 461564, 576955, 692346, 716220, 903060, 1038519, 1153910, 1384692, 1730865, 2077038, 2307820, 3461730, 4154076, 5192595, 6923460, 10385190, 20770380]

約数ペア:

[(1, 20770380), (2, 10385190), (3, 6923460), (4, 5192595), (5, 4154076), (6, 3461730), (9, 2307820), (10, 2077038), (12, 1730865), (15, 1384692), (18, 1153910), (20, 1038519), (23, 903060), (29, 716220), (30, 692346), (36, 576955), (45, 461564), (46, 451530), (58, 358110), (60, 346173), (69, 301020), (87, 238740), (90, 230782), (92, 225765), (115, 180612), (116, 179055), (138, 150510), (145, 143244), (173, 120060), (174, 119370), (180, 115391), (207, 100340), (230, 90306), (261, 79580), (276, 75255), (290, 71622), (345, 60204), (346, 60030), (348, 59685), (414, 50170), (435, 47748), (460, 45153), (519, 40020), (522, 39790), (580, 35811), (667, 31140), (690, 30102), (692, 30015), (828, 25085), (865, 24012), (870, 23874), (1035, 20068), (1038, 20010), (1044, 19895), (1305, 15916), (1334, 15570), (1380, 15051), (1557, 13340), (1730, 12006), (1740, 11937), (2001, 10380), (2070, 10034), (2076, 10005), (2595, 8004), (2610, 7958), (2668, 7785), (3114, 6670), (3335, 6228), (3460, 6003), (3979, 5220), (4002, 5190), (4140, 5017)]