90240280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173539}}^1$

素因数の和:173563

約数の個数: 32

約数和(自身を含む): 218660400

約数和(自身を除く): 128420120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 173539, 347078, 694156, 867695, 1388312, 1735390, 2256007, 3470780, 4512014, 6941560, 9024028, 11280035, 18048056, 22560070, 45120140, 90240280]

約数ペア:

[(1, 90240280), (2, 45120140), (4, 22560070), (5, 18048056), (8, 11280035), (10, 9024028), (13, 6941560), (20, 4512014), (26, 3470780), (40, 2256007), (52, 1735390), (65, 1388312), (104, 867695), (130, 694156), (260, 347078), (520, 173539)]