90274660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 222009984

約数和(自身を除く): 131735324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 367, 490, 502, 734, 980, 1004, 1255, 1468, 1757, 1835, 2510, 2569, 3514, 3670, 5020, 5138, 7028, 7340, 8785, 10276, 12299, 12845, 17570, 17983, 24598, 25690, 35140, 35966, 49196, 51380, 61495, 71932, 89915, 92117, 122990, 179830, 184234, 245980, 359660, 368468, 460585, 644819, 921170, 1289638, 1842340, 2579276, 3224095, 4513733, 6448190, 9027466, 12896380, 18054932, 22568665, 45137330, 90274660]

約数ペア:

[(1, 90274660), (2, 45137330), (4, 22568665), (5, 18054932), (7, 12896380), (10, 9027466), (14, 6448190), (20, 4513733), (28, 3224095), (35, 2579276), (49, 1842340), (70, 1289638), (98, 921170), (140, 644819), (196, 460585), (245, 368468), (251, 359660), (367, 245980), (490, 184234), (502, 179830), (734, 122990), (980, 92117), (1004, 89915), (1255, 71932), (1468, 61495), (1757, 51380), (1835, 49196), (2510, 35966), (2569, 35140), (3514, 25690), (3670, 24598), (5020, 17983), (5138, 17570), (7028, 12845), (7340, 12299), (8785, 10276)]