204560980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{60521}}^1$

素因数の和:60556

約数の個数: 36

約数和(自身を含む): 465172092

約数和(自身を除く): 260611112

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 60521, 121042, 242084, 302605, 605210, 786773, 1210420, 1573546, 3147092, 3933865, 7867730, 10228049, 15735460, 20456098, 40912196, 51140245, 102280490, 204560980]

約数ペア:

[(1, 204560980), (2, 102280490), (4, 51140245), (5, 40912196), (10, 20456098), (13, 15735460), (20, 10228049), (26, 7867730), (52, 3933865), (65, 3147092), (130, 1573546), (169, 1210420), (260, 786773), (338, 605210), (676, 302605), (845, 242084), (1690, 121042), (3380, 60521)]