631408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:125

約数の個数: 40

約数和(自身を含む): 1349120

約数和(自身を除く): 717712

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 67, 76, 124, 134, 152, 248, 268, 304, 496, 536, 589, 1072, 1178, 1273, 2077, 2356, 2546, 4154, 4712, 5092, 8308, 9424, 10184, 16616, 20368, 33232, 39463, 78926, 157852, 315704, 631408]

約数ペア:

[(1, 631408), (2, 315704), (4, 157852), (8, 78926), (16, 39463), (19, 33232), (31, 20368), (38, 16616), (62, 10184), (67, 9424), (76, 8308), (124, 5092), (134, 4712), (152, 4154), (248, 2546), (268, 2356), (304, 2077), (496, 1273), (536, 1178), (589, 1072)]