16815380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 39748968

約数和(自身を除く): 22933588

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 137, 170, 190, 274, 323, 340, 361, 380, 548, 646, 685, 722, 1292, 1370, 1444, 1615, 1805, 2329, 2603, 2740, 3230, 3610, 4658, 5206, 6137, 6460, 7220, 9316, 10412, 11645, 12274, 13015, 23290, 24548, 26030, 30685, 44251, 46580, 49457, 52060, 61370, 88502, 98914, 122740, 177004, 197828, 221255, 247285, 442510, 494570, 840769, 885020, 989140, 1681538, 3363076, 4203845, 8407690, 16815380]

約数ペア:

[(1, 16815380), (2, 8407690), (4, 4203845), (5, 3363076), (10, 1681538), (17, 989140), (19, 885020), (20, 840769), (34, 494570), (38, 442510), (68, 247285), (76, 221255), (85, 197828), (95, 177004), (137, 122740), (170, 98914), (190, 88502), (274, 61370), (323, 52060), (340, 49457), (361, 46580), (380, 44251), (548, 30685), (646, 26030), (685, 24548), (722, 23290), (1292, 13015), (1370, 12274), (1444, 11645), (1615, 10412), (1805, 9316), (2329, 7220), (2603, 6460), (2740, 6137), (3230, 5206), (3610, 4658)]