284008900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:566

約数の個数: 108

約数和(自身を含む): 723586500

約数和(自身を除く): 439577600

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 149, 175, 196, 245, 298, 350, 389, 490, 596, 700, 745, 778, 980, 1043, 1225, 1490, 1556, 1945, 2086, 2450, 2723, 2980, 3725, 3890, 4172, 4900, 5215, 5446, 7301, 7450, 7780, 9725, 10430, 10892, 13615, 14602, 14900, 19061, 19450, 20860, 26075, 27230, 29204, 36505, 38122, 38900, 52150, 54460, 57961, 68075, 73010, 76244, 95305, 104300, 115922, 136150, 146020, 182525, 190610, 231844, 272300, 289805, 365050, 381220, 405727, 476525, 579610, 730100, 811454, 953050, 1159220, 1449025, 1622908, 1906100, 2028635, 2840089, 2898050, 4057270, 5680178, 5796100, 8114540, 10143175, 11360356, 14200445, 20286350, 28400890, 40572700, 56801780, 71002225, 142004450, 284008900]

約数ペア:

[(1, 284008900), (2, 142004450), (4, 71002225), (5, 56801780), (7, 40572700), (10, 28400890), (14, 20286350), (20, 14200445), (25, 11360356), (28, 10143175), (35, 8114540), (49, 5796100), (50, 5680178), (70, 4057270), (98, 2898050), (100, 2840089), (140, 2028635), (149, 1906100), (175, 1622908), (196, 1449025), (245, 1159220), (298, 953050), (350, 811454), (389, 730100), (490, 579610), (596, 476525), (700, 405727), (745, 381220), (778, 365050), (980, 289805), (1043, 272300), (1225, 231844), (1490, 190610), (1556, 182525), (1945, 146020), (2086, 136150), (2450, 115922), (2723, 104300), (2980, 95305), (3725, 76244), (3890, 73010), (4172, 68075), (4900, 57961), (5215, 54460), (5446, 52150), (7301, 38900), (7450, 38122), (7780, 36505), (9725, 29204), (10430, 27230), (10892, 26075), (13615, 20860), (14602, 19450), (14900, 19061)]