19003280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 47608560

約数和(自身を除く): 28605280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 157, 170, 178, 272, 314, 340, 356, 445, 628, 680, 712, 785, 890, 1256, 1360, 1424, 1513, 1570, 1780, 2512, 2669, 3026, 3140, 3560, 5338, 6052, 6280, 7120, 7565, 10676, 12104, 12560, 13345, 13973, 15130, 21352, 24208, 26690, 27946, 30260, 42704, 53380, 55892, 60520, 69865, 106760, 111784, 121040, 139730, 213520, 223568, 237541, 279460, 475082, 558920, 950164, 1117840, 1187705, 1900328, 2375410, 3800656, 4750820, 9501640, 19003280]

約数ペア:

[(1, 19003280), (2, 9501640), (4, 4750820), (5, 3800656), (8, 2375410), (10, 1900328), (16, 1187705), (17, 1117840), (20, 950164), (34, 558920), (40, 475082), (68, 279460), (80, 237541), (85, 223568), (89, 213520), (136, 139730), (157, 121040), (170, 111784), (178, 106760), (272, 69865), (314, 60520), (340, 55892), (356, 53380), (445, 42704), (628, 30260), (680, 27946), (712, 26690), (785, 24208), (890, 21352), (1256, 15130), (1360, 13973), (1424, 13345), (1513, 12560), (1570, 12104), (1780, 10676), (2512, 7565), (2669, 7120), (3026, 6280), (3140, 6052), (3560, 5338)]