28491120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5653}}^1$

素因数の和:5679

約数の個数: 120

約数和(自身を含む): 109370976

約数和(自身を除く): 80879856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5653, 11306, 16959, 22612, 28265, 33918, 39571, 45224, 50877, 56530, 67836, 79142, 84795, 90448, 101754, 113060, 118713, 135672, 158284, 169590, 197855, 203508, 226120, 237426, 254385, 271344, 316568, 339180, 356139, 395710, 407016, 452240, 474852, 508770, 593565, 633136, 678360, 712278, 791420, 814032, 949704, 1017540, 1187130, 1356720, 1424556, 1582840, 1780695, 1899408, 2035080, 2374260, 2849112, 3165680, 3561390, 4070160, 4748520, 5698224, 7122780, 9497040, 14245560, 28491120]

約数ペア:

[(1, 28491120), (2, 14245560), (3, 9497040), (4, 7122780), (5, 5698224), (6, 4748520), (7, 4070160), (8, 3561390), (9, 3165680), (10, 2849112), (12, 2374260), (14, 2035080), (15, 1899408), (16, 1780695), (18, 1582840), (20, 1424556), (21, 1356720), (24, 1187130), (28, 1017540), (30, 949704), (35, 814032), (36, 791420), (40, 712278), (42, 678360), (45, 633136), (48, 593565), (56, 508770), (60, 474852), (63, 452240), (70, 407016), (72, 395710), (80, 356139), (84, 339180), (90, 316568), (105, 271344), (112, 254385), (120, 237426), (126, 226120), (140, 203508), (144, 197855), (168, 169590), (180, 158284), (210, 135672), (240, 118713), (252, 113060), (280, 101754), (315, 90448), (336, 84795), (360, 79142), (420, 67836), (504, 56530), (560, 50877), (630, 45224), (720, 39571), (840, 33918), (1008, 28265), (1260, 22612), (1680, 16959), (2520, 11306), (5040, 5653)]