31781200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:293

約数の個数: 120

約数和(自身を含む): 86351616

約数和(自身を除く): 54570416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 176, 200, 220, 233, 248, 275, 310, 341, 400, 440, 466, 496, 550, 620, 682, 775, 880, 932, 1100, 1165, 1240, 1364, 1550, 1705, 1864, 2200, 2330, 2480, 2563, 2728, 3100, 3410, 3728, 4400, 4660, 5126, 5456, 5825, 6200, 6820, 7223, 8525, 9320, 10252, 11650, 12400, 12815, 13640, 14446, 17050, 18640, 20504, 23300, 25630, 27280, 28892, 34100, 36115, 41008, 46600, 51260, 57784, 64075, 68200, 72230, 79453, 93200, 102520, 115568, 128150, 136400, 144460, 158906, 180575, 205040, 256300, 288920, 317812, 361150, 397265, 512600, 577840, 635624, 722300, 794530, 1025200, 1271248, 1444600, 1589060, 1986325, 2889200, 3178120, 3972650, 6356240, 7945300, 15890600, 31781200]

約数ペア:

[(1, 31781200), (2, 15890600), (4, 7945300), (5, 6356240), (8, 3972650), (10, 3178120), (11, 2889200), (16, 1986325), (20, 1589060), (22, 1444600), (25, 1271248), (31, 1025200), (40, 794530), (44, 722300), (50, 635624), (55, 577840), (62, 512600), (80, 397265), (88, 361150), (100, 317812), (110, 288920), (124, 256300), (155, 205040), (176, 180575), (200, 158906), (220, 144460), (233, 136400), (248, 128150), (275, 115568), (310, 102520), (341, 93200), (400, 79453), (440, 72230), (466, 68200), (496, 64075), (550, 57784), (620, 51260), (682, 46600), (775, 41008), (880, 36115), (932, 34100), (1100, 28892), (1165, 27280), (1240, 25630), (1364, 23300), (1550, 20504), (1705, 18640), (1864, 17050), (2200, 14446), (2330, 13640), (2480, 12815), (2563, 12400), (2728, 11650), (3100, 10252), (3410, 9320), (3728, 8525), (4400, 7223), (4660, 6820), (5126, 6200), (5456, 5825)]