313815720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1115

約数の個数: 128

約数和(自身を含む): 980115840

約数和(自身を除く): 666300120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 61, 86, 120, 122, 129, 172, 183, 215, 244, 258, 305, 344, 366, 430, 488, 516, 610, 645, 732, 860, 915, 997, 1032, 1220, 1290, 1464, 1720, 1830, 1994, 2440, 2580, 2623, 2991, 3660, 3988, 4985, 5160, 5246, 5982, 7320, 7869, 7976, 9970, 10492, 11964, 13115, 14955, 15738, 19940, 20984, 23928, 26230, 29910, 31476, 39345, 39880, 42871, 52460, 59820, 60817, 62952, 78690, 85742, 104920, 119640, 121634, 128613, 157380, 171484, 182451, 214355, 243268, 257226, 304085, 314760, 342968, 364902, 428710, 486536, 514452, 608170, 643065, 729804, 857420, 912255, 1028904, 1216340, 1286130, 1459608, 1714840, 1824510, 2432680, 2572260, 2615131, 3649020, 5144520, 5230262, 7298040, 7845393, 10460524, 13075655, 15690786, 20921048, 26151310, 31381572, 39226965, 52302620, 62763144, 78453930, 104605240, 156907860, 313815720]

約数ペア:

[(1, 313815720), (2, 156907860), (3, 104605240), (4, 78453930), (5, 62763144), (6, 52302620), (8, 39226965), (10, 31381572), (12, 26151310), (15, 20921048), (20, 15690786), (24, 13075655), (30, 10460524), (40, 7845393), (43, 7298040), (60, 5230262), (61, 5144520), (86, 3649020), (120, 2615131), (122, 2572260), (129, 2432680), (172, 1824510), (183, 1714840), (215, 1459608), (244, 1286130), (258, 1216340), (305, 1028904), (344, 912255), (366, 857420), (430, 729804), (488, 643065), (516, 608170), (610, 514452), (645, 486536), (732, 428710), (860, 364902), (915, 342968), (997, 314760), (1032, 304085), (1220, 257226), (1290, 243268), (1464, 214355), (1720, 182451), (1830, 171484), (1994, 157380), (2440, 128613), (2580, 121634), (2623, 119640), (2991, 104920), (3660, 85742), (3988, 78690), (4985, 62952), (5160, 60817), (5246, 59820), (5982, 52460), (7320, 42871), (7869, 39880), (7976, 39345), (9970, 31476), (10492, 29910), (11964, 26230), (13115, 23928), (14955, 20984), (15738, 19940)]