205855860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70019}}^1$

素因数の和:70045

約数の個数: 72

約数和(自身を含む): 670511520

約数和(自身を除く): 464655660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70019, 140038, 210057, 280076, 350095, 420114, 490133, 700190, 840228, 980266, 1050285, 1400380, 1470399, 1960532, 2100570, 2450665, 2940798, 3430931, 4201140, 4901330, 5881596, 6861862, 7351995, 9802660, 10292793, 13723724, 14703990, 17154655, 20585586, 29407980, 34309310, 41171172, 51463965, 68618620, 102927930, 205855860]

約数ペア:

[(1, 205855860), (2, 102927930), (3, 68618620), (4, 51463965), (5, 41171172), (6, 34309310), (7, 29407980), (10, 20585586), (12, 17154655), (14, 14703990), (15, 13723724), (20, 10292793), (21, 9802660), (28, 7351995), (30, 6861862), (35, 5881596), (42, 4901330), (49, 4201140), (60, 3430931), (70, 2940798), (84, 2450665), (98, 2100570), (105, 1960532), (140, 1470399), (147, 1400380), (196, 1050285), (210, 980266), (245, 840228), (294, 700190), (420, 490133), (490, 420114), (588, 350095), (735, 280076), (980, 210057), (1470, 140038), (2940, 70019)]