420131344

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 894784000

約数和(自身を除く): 474652656

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 109, 124, 152, 218, 248, 304, 409, 436, 496, 589, 818, 872, 1178, 1636, 1744, 2071, 2356, 3272, 3379, 4142, 4712, 6544, 6758, 7771, 8284, 9424, 12679, 13516, 15542, 16568, 25358, 27032, 31084, 33136, 44581, 50716, 54064, 62168, 64201, 89162, 101432, 124336, 128402, 178324, 202864, 240901, 256804, 356648, 481802, 513608, 713296, 847039, 963604, 1027216, 1382011, 1694078, 1927208, 2764022, 3388156, 3854416, 5528044, 6776312, 11056088, 13552624, 22112176, 26258209, 52516418, 105032836, 210065672, 420131344]

約数ペア:

[(1, 420131344), (2, 210065672), (4, 105032836), (8, 52516418), (16, 26258209), (19, 22112176), (31, 13552624), (38, 11056088), (62, 6776312), (76, 5528044), (109, 3854416), (124, 3388156), (152, 2764022), (218, 1927208), (248, 1694078), (304, 1382011), (409, 1027216), (436, 963604), (496, 847039), (589, 713296), (818, 513608), (872, 481802), (1178, 356648), (1636, 256804), (1744, 240901), (2071, 202864), (2356, 178324), (3272, 128402), (3379, 124336), (4142, 101432), (4712, 89162), (6544, 64201), (6758, 62168), (7771, 54064), (8284, 50716), (9424, 44581), (12679, 33136), (13516, 31084), (15542, 27032), (16568, 25358)]