387620140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1535

約数の個数: 72

約数和(自身を含む): 882926352

約数和(自身を除く): 495306212

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 361, 370, 380, 703, 722, 740, 1406, 1444, 1451, 1805, 2812, 2902, 3515, 3610, 5804, 7030, 7220, 7255, 13357, 14060, 14510, 26714, 27569, 29020, 53428, 53687, 55138, 66785, 107374, 110276, 133570, 137845, 214748, 267140, 268435, 275690, 523811, 536870, 551380, 1020053, 1047622, 1073740, 2040106, 2095244, 2619055, 4080212, 5100265, 5238110, 10200530, 10476220, 19381007, 20401060, 38762014, 77524028, 96905035, 193810070, 387620140]

約数ペア:

[(1, 387620140), (2, 193810070), (4, 96905035), (5, 77524028), (10, 38762014), (19, 20401060), (20, 19381007), (37, 10476220), (38, 10200530), (74, 5238110), (76, 5100265), (95, 4080212), (148, 2619055), (185, 2095244), (190, 2040106), (361, 1073740), (370, 1047622), (380, 1020053), (703, 551380), (722, 536870), (740, 523811), (1406, 275690), (1444, 268435), (1451, 267140), (1805, 214748), (2812, 137845), (2902, 133570), (3515, 110276), (3610, 107374), (5804, 66785), (7030, 55138), (7220, 53687), (7255, 53428), (13357, 29020), (14060, 27569), (14510, 26714)]