13685960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 18454840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 79, 122, 142, 158, 244, 284, 305, 316, 355, 395, 488, 568, 610, 632, 710, 790, 1220, 1420, 1580, 2440, 2840, 3160, 4331, 4819, 5609, 8662, 9638, 11218, 17324, 19276, 21655, 22436, 24095, 28045, 34648, 38552, 43310, 44872, 48190, 56090, 86620, 96380, 112180, 173240, 192760, 224360, 342149, 684298, 1368596, 1710745, 2737192, 3421490, 6842980, 13685960]

約数ペア:

[(1, 13685960), (2, 6842980), (4, 3421490), (5, 2737192), (8, 1710745), (10, 1368596), (20, 684298), (40, 342149), (61, 224360), (71, 192760), (79, 173240), (122, 112180), (142, 96380), (158, 86620), (244, 56090), (284, 48190), (305, 44872), (316, 43310), (355, 38552), (395, 34648), (488, 28045), (568, 24095), (610, 22436), (632, 21655), (710, 19276), (790, 17324), (1220, 11218), (1420, 9638), (1580, 8662), (2440, 5609), (2840, 4819), (3160, 4331)]