20729250

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:146

約数の個数: 128

約数和(自身を含む): 59754240

約数和(自身を除く): 39024990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 37, 45, 50, 54, 74, 75, 83, 90, 111, 125, 135, 150, 166, 185, 222, 225, 249, 250, 270, 333, 370, 375, 415, 450, 498, 555, 666, 675, 747, 750, 830, 925, 999, 1110, 1125, 1245, 1350, 1494, 1665, 1850, 1998, 2075, 2241, 2250, 2490, 2775, 3071, 3330, 3375, 3735, 4150, 4482, 4625, 4995, 5550, 6142, 6225, 6750, 7470, 8325, 9213, 9250, 9990, 10375, 11205, 12450, 13875, 15355, 16650, 18426, 18675, 20750, 22410, 24975, 27639, 27750, 30710, 31125, 37350, 41625, 46065, 49950, 55278, 56025, 62250, 76775, 82917, 83250, 92130, 93375, 112050, 124875, 138195, 153550, 165834, 186750, 230325, 249750, 276390, 280125, 383875, 414585, 460650, 560250, 690975, 767750, 829170, 1151625, 1381950, 2072925, 2303250, 3454875, 4145850, 6909750, 10364625, 20729250]

約数ペア:

[(1, 20729250), (2, 10364625), (3, 6909750), (5, 4145850), (6, 3454875), (9, 2303250), (10, 2072925), (15, 1381950), (18, 1151625), (25, 829170), (27, 767750), (30, 690975), (37, 560250), (45, 460650), (50, 414585), (54, 383875), (74, 280125), (75, 276390), (83, 249750), (90, 230325), (111, 186750), (125, 165834), (135, 153550), (150, 138195), (166, 124875), (185, 112050), (222, 93375), (225, 92130), (249, 83250), (250, 82917), (270, 76775), (333, 62250), (370, 56025), (375, 55278), (415, 49950), (450, 46065), (498, 41625), (555, 37350), (666, 31125), (675, 30710), (747, 27750), (750, 27639), (830, 24975), (925, 22410), (999, 20750), (1110, 18675), (1125, 18426), (1245, 16650), (1350, 15355), (1494, 13875), (1665, 12450), (1850, 11205), (1998, 10375), (2075, 9990), (2241, 9250), (2250, 9213), (2490, 8325), (2775, 7470), (3071, 6750), (3330, 6225), (3375, 6142), (3735, 5550), (4150, 4995), (4482, 4625)]