20258100

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 180

約数和(自身を含む): 68373228

約数和(自身を除く): 48115128

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 41, 45, 50, 54, 60, 61, 75, 81, 82, 90, 100, 108, 122, 123, 135, 150, 162, 164, 180, 183, 205, 225, 244, 246, 270, 300, 305, 324, 366, 369, 405, 410, 450, 492, 540, 549, 610, 615, 675, 732, 738, 810, 820, 900, 915, 1025, 1098, 1107, 1220, 1230, 1350, 1476, 1525, 1620, 1647, 1830, 1845, 2025, 2050, 2196, 2214, 2460, 2501, 2700, 2745, 3050, 3075, 3294, 3321, 3660, 3690, 4050, 4100, 4428, 4575, 4941, 5002, 5490, 5535, 6100, 6150, 6588, 6642, 7380, 7503, 8100, 8235, 9150, 9225, 9882, 10004, 10980, 11070, 12300, 12505, 13284, 13725, 15006, 16470, 16605, 18300, 18450, 19764, 22140, 22509, 24705, 25010, 27450, 27675, 30012, 32940, 33210, 36900, 37515, 41175, 45018, 49410, 50020, 54900, 55350, 62525, 66420, 67527, 75030, 82350, 83025, 90036, 98820, 110700, 112545, 123525, 125050, 135054, 150060, 164700, 166050, 187575, 202581, 225090, 247050, 250100, 270108, 332100, 337635, 375150, 405162, 450180, 494100, 562725, 675270, 750300, 810324, 1012905, 1125450, 1350540, 1688175, 2025810, 2250900, 3376350, 4051620, 5064525, 6752700, 10129050, 20258100]

約数ペア:

[(1, 20258100), (2, 10129050), (3, 6752700), (4, 5064525), (5, 4051620), (6, 3376350), (9, 2250900), (10, 2025810), (12, 1688175), (15, 1350540), (18, 1125450), (20, 1012905), (25, 810324), (27, 750300), (30, 675270), (36, 562725), (41, 494100), (45, 450180), (50, 405162), (54, 375150), (60, 337635), (61, 332100), (75, 270108), (81, 250100), (82, 247050), (90, 225090), (100, 202581), (108, 187575), (122, 166050), (123, 164700), (135, 150060), (150, 135054), (162, 125050), (164, 123525), (180, 112545), (183, 110700), (205, 98820), (225, 90036), (244, 83025), (246, 82350), (270, 75030), (300, 67527), (305, 66420), (324, 62525), (366, 55350), (369, 54900), (405, 50020), (410, 49410), (450, 45018), (492, 41175), (540, 37515), (549, 36900), (610, 33210), (615, 32940), (675, 30012), (732, 27675), (738, 27450), (810, 25010), (820, 24705), (900, 22509), (915, 22140), (1025, 19764), (1098, 18450), (1107, 18300), (1220, 16605), (1230, 16470), (1350, 15006), (1476, 13725), (1525, 13284), (1620, 12505), (1647, 12300), (1830, 11070), (1845, 10980), (2025, 10004), (2050, 9882), (2196, 9225), (2214, 9150), (2460, 8235), (2501, 8100), (2700, 7503), (2745, 7380), (3050, 6642), (3075, 6588), (3294, 6150), (3321, 6100), (3660, 5535), (3690, 5490), (4050, 5002), (4100, 4941), (4428, 4575)]