245913640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 655983360

約数和(自身を除く): 410069720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 73, 106, 140, 146, 212, 227, 265, 280, 292, 365, 371, 424, 454, 511, 530, 584, 730, 742, 908, 1022, 1060, 1135, 1460, 1484, 1589, 1816, 1855, 2044, 2120, 2270, 2555, 2920, 2968, 3178, 3710, 3869, 4088, 4540, 5110, 6356, 7420, 7738, 7945, 9080, 10220, 12031, 12712, 14840, 15476, 15890, 16571, 19345, 20440, 24062, 27083, 30952, 31780, 33142, 38690, 48124, 54166, 60155, 63560, 66284, 77380, 82855, 84217, 96248, 108332, 115997, 120310, 132568, 135415, 154760, 165710, 168434, 216664, 231994, 240620, 270830, 331420, 336868, 421085, 463988, 481240, 541660, 579985, 662840, 673736, 842170, 878263, 927976, 1083320, 1159970, 1684340, 1756526, 2319940, 3368680, 3513052, 4391315, 4639880, 6147841, 7026104, 8782630, 12295682, 17565260, 24591364, 30739205, 35130520, 49182728, 61478410, 122956820, 245913640]

約数ペア:

[(1, 245913640), (2, 122956820), (4, 61478410), (5, 49182728), (7, 35130520), (8, 30739205), (10, 24591364), (14, 17565260), (20, 12295682), (28, 8782630), (35, 7026104), (40, 6147841), (53, 4639880), (56, 4391315), (70, 3513052), (73, 3368680), (106, 2319940), (140, 1756526), (146, 1684340), (212, 1159970), (227, 1083320), (265, 927976), (280, 878263), (292, 842170), (365, 673736), (371, 662840), (424, 579985), (454, 541660), (511, 481240), (530, 463988), (584, 421085), (730, 336868), (742, 331420), (908, 270830), (1022, 240620), (1060, 231994), (1135, 216664), (1460, 168434), (1484, 165710), (1589, 154760), (1816, 135415), (1855, 132568), (2044, 120310), (2120, 115997), (2270, 108332), (2555, 96248), (2920, 84217), (2968, 82855), (3178, 77380), (3710, 66284), (3869, 63560), (4088, 60155), (4540, 54166), (5110, 48124), (6356, 38690), (7420, 33142), (7738, 31780), (7945, 30952), (9080, 27083), (10220, 24062), (12031, 20440), (12712, 19345), (14840, 16571), (15476, 15890)]