28209540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 82583424

約数和(自身を除く): 54373884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 97, 111, 131, 148, 185, 194, 222, 262, 291, 370, 388, 393, 444, 485, 524, 555, 582, 655, 740, 786, 970, 1110, 1164, 1310, 1455, 1572, 1940, 1965, 2220, 2620, 2910, 3589, 3930, 4847, 5820, 7178, 7860, 9694, 10767, 12707, 14356, 14541, 17945, 19388, 21534, 24235, 25414, 29082, 35890, 38121, 43068, 48470, 50828, 53835, 58164, 63535, 71780, 72705, 76242, 96940, 107670, 127070, 145410, 152484, 190605, 215340, 254140, 290820, 381210, 470159, 762420, 940318, 1410477, 1880636, 2350795, 2820954, 4701590, 5641908, 7052385, 9403180, 14104770, 28209540]

約数ペア:

[(1, 28209540), (2, 14104770), (3, 9403180), (4, 7052385), (5, 5641908), (6, 4701590), (10, 2820954), (12, 2350795), (15, 1880636), (20, 1410477), (30, 940318), (37, 762420), (60, 470159), (74, 381210), (97, 290820), (111, 254140), (131, 215340), (148, 190605), (185, 152484), (194, 145410), (222, 127070), (262, 107670), (291, 96940), (370, 76242), (388, 72705), (393, 71780), (444, 63535), (485, 58164), (524, 53835), (555, 50828), (582, 48470), (655, 43068), (740, 38121), (786, 35890), (970, 29082), (1110, 25414), (1164, 24235), (1310, 21534), (1455, 19388), (1572, 17945), (1940, 14541), (1965, 14356), (2220, 12707), (2620, 10767), (2910, 9694), (3589, 7860), (3930, 7178), (4847, 5820)]