19681340

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 51072000

約数和(自身を除く): 31390660

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 151, 190, 196, 245, 266, 302, 343, 380, 490, 532, 604, 665, 686, 755, 931, 980, 1057, 1330, 1372, 1510, 1715, 1862, 2114, 2660, 2869, 3020, 3430, 3724, 4228, 4655, 5285, 5738, 6517, 6860, 7399, 9310, 10570, 11476, 13034, 14345, 14798, 18620, 20083, 21140, 26068, 28690, 29596, 32585, 36995, 40166, 51793, 57380, 65170, 73990, 80332, 100415, 103586, 130340, 140581, 147980, 200830, 207172, 258965, 281162, 401660, 517930, 562324, 702905, 984067, 1035860, 1405810, 1968134, 2811620, 3936268, 4920335, 9840670, 19681340]

約数ペア:

[(1, 19681340), (2, 9840670), (4, 4920335), (5, 3936268), (7, 2811620), (10, 1968134), (14, 1405810), (19, 1035860), (20, 984067), (28, 702905), (35, 562324), (38, 517930), (49, 401660), (70, 281162), (76, 258965), (95, 207172), (98, 200830), (133, 147980), (140, 140581), (151, 130340), (190, 103586), (196, 100415), (245, 80332), (266, 73990), (302, 65170), (343, 57380), (380, 51793), (490, 40166), (532, 36995), (604, 32585), (665, 29596), (686, 28690), (755, 26068), (931, 21140), (980, 20083), (1057, 18620), (1330, 14798), (1372, 14345), (1510, 13034), (1715, 11476), (1862, 10570), (2114, 9310), (2660, 7399), (2869, 6860), (3020, 6517), (3430, 5738), (3724, 5285), (4228, 4655)]