905430100

素因数分解:

$2^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 1993622400

約数和(自身を除く): 1088192300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 173, 199, 263, 346, 398, 526, 692, 796, 865, 995, 1052, 1315, 1730, 1990, 2630, 3460, 3980, 4325, 4975, 5260, 6575, 8650, 9950, 13150, 17300, 19900, 26300, 34427, 45499, 52337, 68854, 90998, 104674, 137708, 172135, 181996, 209348, 227495, 261685, 344270, 454990, 523370, 688540, 860675, 909980, 1046740, 1137475, 1308425, 1721350, 2274950, 2616850, 3442700, 4549900, 5233700, 9054301, 18108602, 36217204, 45271505, 90543010, 181086020, 226357525, 452715050, 905430100]

約数ペア:

[(1, 905430100), (2, 452715050), (4, 226357525), (5, 181086020), (10, 90543010), (20, 45271505), (25, 36217204), (50, 18108602), (100, 9054301), (173, 5233700), (199, 4549900), (263, 3442700), (346, 2616850), (398, 2274950), (526, 1721350), (692, 1308425), (796, 1137475), (865, 1046740), (995, 909980), (1052, 860675), (1315, 688540), (1730, 523370), (1990, 454990), (2630, 344270), (3460, 261685), (3980, 227495), (4325, 209348), (4975, 181996), (5260, 172135), (6575, 137708), (8650, 104674), (9950, 90998), (13150, 68854), (17300, 52337), (19900, 45499), (26300, 34427)]