40438320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{997}}^1$

素因数の和:1039

約数の個数: 120

約数和(自身を含む): 135879696

約数和(自身を除く): 95441376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 507, 520, 624, 676, 780, 845, 997, 1014, 1040, 1352, 1560, 1690, 1994, 2028, 2535, 2704, 2991, 3120, 3380, 3988, 4056, 4985, 5070, 5982, 6760, 7976, 8112, 9970, 10140, 11964, 12961, 13520, 14955, 15952, 19940, 20280, 23928, 25922, 29910, 38883, 39880, 40560, 47856, 51844, 59820, 64805, 77766, 79760, 103688, 119640, 129610, 155532, 168493, 194415, 207376, 239280, 259220, 311064, 336986, 388830, 505479, 518440, 622128, 673972, 777660, 842465, 1010958, 1036880, 1347944, 1555320, 1684930, 2021916, 2527395, 2695888, 3110640, 3369860, 4043832, 5054790, 6739720, 8087664, 10109580, 13479440, 20219160, 40438320]

約数ペア:

[(1, 40438320), (2, 20219160), (3, 13479440), (4, 10109580), (5, 8087664), (6, 6739720), (8, 5054790), (10, 4043832), (12, 3369860), (13, 3110640), (15, 2695888), (16, 2527395), (20, 2021916), (24, 1684930), (26, 1555320), (30, 1347944), (39, 1036880), (40, 1010958), (48, 842465), (52, 777660), (60, 673972), (65, 622128), (78, 518440), (80, 505479), (104, 388830), (120, 336986), (130, 311064), (156, 259220), (169, 239280), (195, 207376), (208, 194415), (240, 168493), (260, 155532), (312, 129610), (338, 119640), (390, 103688), (507, 79760), (520, 77766), (624, 64805), (676, 59820), (780, 51844), (845, 47856), (997, 40560), (1014, 39880), (1040, 38883), (1352, 29910), (1560, 25922), (1690, 23928), (1994, 20280), (2028, 19940), (2535, 15952), (2704, 14955), (2991, 13520), (3120, 12961), (3380, 11964), (3988, 10140), (4056, 9970), (4985, 8112), (5070, 7976), (5982, 6760)]