22217840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 55710720

約数和(自身を除く): 33492880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 235, 304, 311, 376, 380, 470, 622, 752, 760, 893, 940, 1244, 1520, 1555, 1786, 1880, 2488, 3110, 3572, 3760, 4465, 4976, 5909, 6220, 7144, 8930, 11818, 12440, 14288, 14617, 17860, 23636, 24880, 29234, 29545, 35720, 47272, 58468, 59090, 71440, 73085, 94544, 116936, 118180, 146170, 233872, 236360, 277723, 292340, 472720, 555446, 584680, 1110892, 1169360, 1388615, 2221784, 2777230, 4443568, 5554460, 11108920, 22217840]

約数ペア:

[(1, 22217840), (2, 11108920), (4, 5554460), (5, 4443568), (8, 2777230), (10, 2221784), (16, 1388615), (19, 1169360), (20, 1110892), (38, 584680), (40, 555446), (47, 472720), (76, 292340), (80, 277723), (94, 236360), (95, 233872), (152, 146170), (188, 118180), (190, 116936), (235, 94544), (304, 73085), (311, 71440), (376, 59090), (380, 58468), (470, 47272), (622, 35720), (752, 29545), (760, 29234), (893, 24880), (940, 23636), (1244, 17860), (1520, 14617), (1555, 14288), (1786, 12440), (1880, 11818), (2488, 8930), (3110, 7144), (3572, 6220), (3760, 5909), (4465, 4976)]