31244810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 63638784

約数和(自身を除く): 32393974

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 61, 85, 115, 122, 131, 170, 230, 262, 305, 391, 610, 655, 782, 1037, 1310, 1403, 1955, 2074, 2227, 2806, 3013, 3910, 4454, 5185, 6026, 7015, 7991, 10370, 11135, 14030, 15065, 15982, 22270, 23851, 30130, 39955, 47702, 51221, 79910, 102442, 119255, 135847, 183793, 238510, 256105, 271694, 367586, 512210, 679235, 918965, 1358470, 1837930, 3124481, 6248962, 15622405, 31244810]

約数ペア:

[(1, 31244810), (2, 15622405), (5, 6248962), (10, 3124481), (17, 1837930), (23, 1358470), (34, 918965), (46, 679235), (61, 512210), (85, 367586), (115, 271694), (122, 256105), (131, 238510), (170, 183793), (230, 135847), (262, 119255), (305, 102442), (391, 79910), (610, 51221), (655, 47702), (782, 39955), (1037, 30130), (1310, 23851), (1403, 22270), (1955, 15982), (2074, 15065), (2227, 14030), (2806, 11135), (3013, 10370), (3910, 7991), (4454, 7015), (5185, 6026)]