1280455821470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2153}}^1\times {\mathrm{20773}}^1$

素因数の和:23349

約数の個数: 64

約数和(自身を含む): 2641874451840

約数和(自身を除く): 1361418630370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 818, 2045, 2153, 2863, 4090, 4306, 5726, 10765, 14315, 15071, 20773, 21530, 28630, 30142, 41546, 75355, 103865, 145411, 150710, 207730, 290822, 727055, 880577, 1454110, 1761154, 4402885, 6164039, 8496157, 8805770, 12328078, 16992314, 30820195, 42480785, 44724269, 59473099, 61640390, 84961570, 89448538, 118946198, 223621345, 297365495, 313069883, 447242690, 594730990, 626139766, 1565349415, 3130698830, 18292226021, 36584452042, 91461130105, 128045582147, 182922260210, 256091164294, 640227910735, 1280455821470]

約数ペア:

[(1, 1280455821470), (2, 640227910735), (5, 256091164294), (7, 182922260210), (10, 128045582147), (14, 91461130105), (35, 36584452042), (70, 18292226021), (409, 3130698830), (818, 1565349415), (2045, 626139766), (2153, 594730990), (2863, 447242690), (4090, 313069883), (4306, 297365495), (5726, 223621345), (10765, 118946198), (14315, 89448538), (15071, 84961570), (20773, 61640390), (21530, 59473099), (28630, 44724269), (30142, 42480785), (41546, 30820195), (75355, 16992314), (103865, 12328078), (145411, 8805770), (150710, 8496157), (207730, 6164039), (290822, 4402885), (727055, 1761154), (880577, 1454110)]