520099700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1553}}^1$

素因数の和:1781

約数の個数: 72

約数和(自身を含む): 1201844952

約数和(自身を除く): 681745252

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 197, 340, 394, 425, 788, 850, 985, 1553, 1700, 1970, 3106, 3349, 3940, 4925, 6212, 6698, 7765, 9850, 13396, 15530, 16745, 19700, 26401, 31060, 33490, 38825, 52802, 66980, 77650, 83725, 105604, 132005, 155300, 167450, 264010, 305941, 334900, 528020, 611882, 660025, 1223764, 1320050, 1529705, 2640100, 3059410, 5200997, 6118820, 7648525, 10401994, 15297050, 20803988, 26004985, 30594100, 52009970, 104019940, 130024925, 260049850, 520099700]

約数ペア:

[(1, 520099700), (2, 260049850), (4, 130024925), (5, 104019940), (10, 52009970), (17, 30594100), (20, 26004985), (25, 20803988), (34, 15297050), (50, 10401994), (68, 7648525), (85, 6118820), (100, 5200997), (170, 3059410), (197, 2640100), (340, 1529705), (394, 1320050), (425, 1223764), (788, 660025), (850, 611882), (985, 528020), (1553, 334900), (1700, 305941), (1970, 264010), (3106, 167450), (3349, 155300), (3940, 132005), (4925, 105604), (6212, 83725), (6698, 77650), (7765, 66980), (9850, 52802), (13396, 38825), (15530, 33490), (16745, 31060), (19700, 26401)]