9913720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 24105600

約数和(自身を除く): 14191880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 239, 244, 305, 340, 478, 488, 610, 680, 956, 1037, 1195, 1220, 1912, 2074, 2390, 2440, 4063, 4148, 4780, 5185, 8126, 8296, 9560, 10370, 14579, 16252, 20315, 20740, 29158, 32504, 40630, 41480, 58316, 72895, 81260, 116632, 145790, 162520, 247843, 291580, 495686, 583160, 991372, 1239215, 1982744, 2478430, 4956860, 9913720]

約数ペア:

[(1, 9913720), (2, 4956860), (4, 2478430), (5, 1982744), (8, 1239215), (10, 991372), (17, 583160), (20, 495686), (34, 291580), (40, 247843), (61, 162520), (68, 145790), (85, 116632), (122, 81260), (136, 72895), (170, 58316), (239, 41480), (244, 40630), (305, 32504), (340, 29158), (478, 20740), (488, 20315), (610, 16252), (680, 14579), (956, 10370), (1037, 9560), (1195, 8296), (1220, 8126), (1912, 5185), (2074, 4780), (2390, 4148), (2440, 4063)]