400619349

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 639475200

約数和(自身を除く): 238855851

約数列:

[1, 3, 9, 13, 39, 79, 89, 117, 237, 267, 487, 711, 801, 1027, 1157, 1461, 3081, 3471, 4383, 6331, 7031, 9243, 10413, 18993, 21093, 38473, 43343, 56979, 63279, 91403, 115419, 130029, 274209, 346257, 390087, 500149, 563459, 822627, 1500447, 1690377, 3424097, 4501341, 5071131, 10272291, 30816873, 44513261, 133539783, 400619349]

約数ペア:

[(1, 400619349), (3, 133539783), (9, 44513261), (13, 30816873), (39, 10272291), (79, 5071131), (89, 4501341), (117, 3424097), (237, 1690377), (267, 1500447), (487, 822627), (711, 563459), (801, 500149), (1027, 390087), (1157, 346257), (1461, 274209), (3081, 130029), (3471, 115419), (4383, 91403), (6331, 63279), (7031, 56979), (9243, 43343), (10413, 38473), (18993, 21093)]