23733880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 55442880

約数和(自身を除く): 31709000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 137, 142, 244, 274, 284, 305, 355, 488, 548, 568, 610, 685, 710, 1096, 1220, 1370, 1420, 2440, 2740, 2840, 4331, 5480, 8357, 8662, 9727, 16714, 17324, 19454, 21655, 33428, 34648, 38908, 41785, 43310, 48635, 66856, 77816, 83570, 86620, 97270, 167140, 173240, 194540, 334280, 389080, 593347, 1186694, 2373388, 2966735, 4746776, 5933470, 11866940, 23733880]

約数ペア:

[(1, 23733880), (2, 11866940), (4, 5933470), (5, 4746776), (8, 2966735), (10, 2373388), (20, 1186694), (40, 593347), (61, 389080), (71, 334280), (122, 194540), (137, 173240), (142, 167140), (244, 97270), (274, 86620), (284, 83570), (305, 77816), (355, 66856), (488, 48635), (548, 43310), (568, 41785), (610, 38908), (685, 34648), (710, 33428), (1096, 21655), (1220, 19454), (1370, 17324), (1420, 16714), (2440, 9727), (2740, 8662), (2840, 8357), (4331, 5480)]