28651140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22739}}^1$

素因数の和:22761

約数の個数: 72

約数和(自身を含む): 99328320

約数和(自身を除く): 70677180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22739, 45478, 68217, 90956, 113695, 136434, 159173, 204651, 227390, 272868, 318346, 341085, 409302, 454780, 477519, 636692, 682170, 795865, 818604, 955038, 1023255, 1364340, 1432557, 1591730, 1910076, 2046510, 2387595, 2865114, 3183460, 4093020, 4775190, 5730228, 7162785, 9550380, 14325570, 28651140]

約数ペア:

[(1, 28651140), (2, 14325570), (3, 9550380), (4, 7162785), (5, 5730228), (6, 4775190), (7, 4093020), (9, 3183460), (10, 2865114), (12, 2387595), (14, 2046510), (15, 1910076), (18, 1591730), (20, 1432557), (21, 1364340), (28, 1023255), (30, 955038), (35, 818604), (36, 795865), (42, 682170), (45, 636692), (60, 477519), (63, 454780), (70, 409302), (84, 341085), (90, 318346), (105, 272868), (126, 227390), (140, 204651), (180, 159173), (210, 136434), (252, 113695), (315, 90956), (420, 68217), (630, 45478), (1260, 22739)]