78877960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 218661120

約数和(自身を除く): 139783160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 73, 85, 119, 136, 140, 146, 170, 227, 238, 280, 292, 340, 365, 454, 476, 511, 584, 595, 680, 730, 908, 952, 1022, 1135, 1190, 1241, 1460, 1589, 1816, 2044, 2270, 2380, 2482, 2555, 2920, 3178, 3859, 4088, 4540, 4760, 4964, 5110, 6205, 6356, 7718, 7945, 8687, 9080, 9928, 10220, 12410, 12712, 15436, 15890, 16571, 17374, 19295, 20440, 24820, 27013, 30872, 31780, 33142, 34748, 38590, 43435, 49640, 54026, 63560, 66284, 69496, 77180, 82855, 86870, 108052, 115997, 132568, 135065, 154360, 165710, 173740, 216104, 231994, 270130, 281707, 331420, 347480, 463988, 540260, 563414, 579985, 662840, 927976, 1080520, 1126828, 1159970, 1408535, 1971949, 2253656, 2319940, 2817070, 3943898, 4639880, 5634140, 7887796, 9859745, 11268280, 15775592, 19719490, 39438980, 78877960]

約数ペア:

[(1, 78877960), (2, 39438980), (4, 19719490), (5, 15775592), (7, 11268280), (8, 9859745), (10, 7887796), (14, 5634140), (17, 4639880), (20, 3943898), (28, 2817070), (34, 2319940), (35, 2253656), (40, 1971949), (56, 1408535), (68, 1159970), (70, 1126828), (73, 1080520), (85, 927976), (119, 662840), (136, 579985), (140, 563414), (146, 540260), (170, 463988), (227, 347480), (238, 331420), (280, 281707), (292, 270130), (340, 231994), (365, 216104), (454, 173740), (476, 165710), (511, 154360), (584, 135065), (595, 132568), (680, 115997), (730, 108052), (908, 86870), (952, 82855), (1022, 77180), (1135, 69496), (1190, 66284), (1241, 63560), (1460, 54026), (1589, 49640), (1816, 43435), (2044, 38590), (2270, 34748), (2380, 33142), (2482, 31780), (2555, 30872), (2920, 27013), (3178, 24820), (3859, 20440), (4088, 19295), (4540, 17374), (4760, 16571), (4964, 15890), (5110, 15436), (6205, 12712), (6356, 12410), (7718, 10220), (7945, 9928), (8687, 9080)]