216221620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 494097408

約数和(自身を除く): 277875788

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 73, 92, 94, 115, 137, 146, 188, 230, 235, 274, 292, 365, 460, 470, 548, 685, 730, 940, 1081, 1370, 1460, 1679, 2162, 2740, 3151, 3358, 3431, 4324, 5405, 6302, 6439, 6716, 6862, 8395, 10001, 10810, 12604, 12878, 13724, 15755, 16790, 17155, 20002, 21620, 25756, 31510, 32195, 33580, 34310, 40004, 50005, 63020, 64390, 68620, 78913, 100010, 128780, 148097, 157826, 200020, 230023, 296194, 315652, 394565, 460046, 470047, 592388, 740485, 789130, 920092, 940094, 1150115, 1480970, 1578260, 1880188, 2300230, 2350235, 2961940, 4600460, 4700470, 9400940, 10811081, 21622162, 43244324, 54055405, 108110810, 216221620]

約数ペア:

[(1, 216221620), (2, 108110810), (4, 54055405), (5, 43244324), (10, 21622162), (20, 10811081), (23, 9400940), (46, 4700470), (47, 4600460), (73, 2961940), (92, 2350235), (94, 2300230), (115, 1880188), (137, 1578260), (146, 1480970), (188, 1150115), (230, 940094), (235, 920092), (274, 789130), (292, 740485), (365, 592388), (460, 470047), (470, 460046), (548, 394565), (685, 315652), (730, 296194), (940, 230023), (1081, 200020), (1370, 157826), (1460, 148097), (1679, 128780), (2162, 100010), (2740, 78913), (3151, 68620), (3358, 64390), (3431, 63020), (4324, 50005), (5405, 40004), (6302, 34310), (6439, 33580), (6716, 32195), (6862, 31510), (8395, 25756), (10001, 21620), (10810, 20002), (12604, 17155), (12878, 16790), (13724, 15755)]