61821340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{317}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 152258400

約数和(自身を除く): 90437060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 199, 245, 317, 398, 490, 634, 796, 980, 995, 1268, 1393, 1585, 1990, 2219, 2786, 3170, 3980, 4438, 5572, 6340, 6965, 8876, 9751, 11095, 13930, 15533, 19502, 22190, 27860, 31066, 39004, 44380, 48755, 62132, 63083, 77665, 97510, 126166, 155330, 195020, 252332, 310660, 315415, 441581, 630830, 883162, 1261660, 1766324, 2207905, 3091067, 4415810, 6182134, 8831620, 12364268, 15455335, 30910670, 61821340]

約数ペア:

[(1, 61821340), (2, 30910670), (4, 15455335), (5, 12364268), (7, 8831620), (10, 6182134), (14, 4415810), (20, 3091067), (28, 2207905), (35, 1766324), (49, 1261660), (70, 883162), (98, 630830), (140, 441581), (196, 315415), (199, 310660), (245, 252332), (317, 195020), (398, 155330), (490, 126166), (634, 97510), (796, 77665), (980, 63083), (995, 62132), (1268, 48755), (1393, 44380), (1585, 39004), (1990, 31066), (2219, 27860), (2786, 22190), (3170, 19502), (3980, 15533), (4438, 13930), (5572, 11095), (6340, 9751), (6965, 8876)]