161707980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{739}}^1$

素因数の和:1279

約数の個数: 96

約数和(自身を含む): 519160320

約数和(自身を除く): 357452340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 521, 739, 1042, 1478, 1563, 2084, 2217, 2605, 2956, 3126, 3647, 3695, 4434, 5173, 5210, 6252, 7294, 7390, 7815, 8868, 10346, 10420, 10941, 11085, 14588, 14780, 15519, 15630, 18235, 20692, 21882, 22170, 25865, 31038, 31260, 36470, 43764, 44340, 51730, 54705, 62076, 72940, 77595, 103460, 109410, 155190, 218820, 310380, 385019, 770038, 1155057, 1540076, 1925095, 2310114, 2695133, 3850190, 4620228, 5390266, 5775285, 7700380, 8085399, 10780532, 11550570, 13475665, 16170798, 23101140, 26951330, 32341596, 40426995, 53902660, 80853990, 161707980]

約数ペア:

[(1, 161707980), (2, 80853990), (3, 53902660), (4, 40426995), (5, 32341596), (6, 26951330), (7, 23101140), (10, 16170798), (12, 13475665), (14, 11550570), (15, 10780532), (20, 8085399), (21, 7700380), (28, 5775285), (30, 5390266), (35, 4620228), (42, 3850190), (60, 2695133), (70, 2310114), (84, 1925095), (105, 1540076), (140, 1155057), (210, 770038), (420, 385019), (521, 310380), (739, 218820), (1042, 155190), (1478, 109410), (1563, 103460), (2084, 77595), (2217, 72940), (2605, 62076), (2956, 54705), (3126, 51730), (3647, 44340), (3695, 43764), (4434, 36470), (5173, 31260), (5210, 31038), (6252, 25865), (7294, 22170), (7390, 21882), (7815, 20692), (8868, 18235), (10346, 15630), (10420, 15519), (10941, 14780), (11085, 14588)]