18231750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 52640640

約数和(自身を除く): 34408890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 37, 45, 50, 54, 73, 74, 75, 90, 111, 125, 135, 146, 150, 185, 219, 222, 225, 250, 270, 333, 365, 370, 375, 438, 450, 555, 657, 666, 675, 730, 750, 925, 999, 1095, 1110, 1125, 1314, 1350, 1665, 1825, 1850, 1971, 1998, 2190, 2250, 2701, 2775, 3285, 3330, 3375, 3650, 3942, 4625, 4995, 5402, 5475, 5550, 6570, 6750, 8103, 8325, 9125, 9250, 9855, 9990, 10950, 13505, 13875, 16206, 16425, 16650, 18250, 19710, 24309, 24975, 27010, 27375, 27750, 32850, 40515, 41625, 48618, 49275, 49950, 54750, 67525, 72927, 81030, 82125, 83250, 98550, 121545, 124875, 135050, 145854, 164250, 202575, 243090, 246375, 249750, 337625, 364635, 405150, 492750, 607725, 675250, 729270, 1012875, 1215450, 1823175, 2025750, 3038625, 3646350, 6077250, 9115875, 18231750]

約数ペア:

[(1, 18231750), (2, 9115875), (3, 6077250), (5, 3646350), (6, 3038625), (9, 2025750), (10, 1823175), (15, 1215450), (18, 1012875), (25, 729270), (27, 675250), (30, 607725), (37, 492750), (45, 405150), (50, 364635), (54, 337625), (73, 249750), (74, 246375), (75, 243090), (90, 202575), (111, 164250), (125, 145854), (135, 135050), (146, 124875), (150, 121545), (185, 98550), (219, 83250), (222, 82125), (225, 81030), (250, 72927), (270, 67525), (333, 54750), (365, 49950), (370, 49275), (375, 48618), (438, 41625), (450, 40515), (555, 32850), (657, 27750), (666, 27375), (675, 27010), (730, 24975), (750, 24309), (925, 19710), (999, 18250), (1095, 16650), (1110, 16425), (1125, 16206), (1314, 13875), (1350, 13505), (1665, 10950), (1825, 9990), (1850, 9855), (1971, 9250), (1998, 9125), (2190, 8325), (2250, 8103), (2701, 6750), (2775, 6570), (3285, 5550), (3330, 5475), (3375, 5402), (3650, 4995), (3942, 4625)]