20629980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2339}}^1$

素因数の和:2368

約数の個数: 108

約数和(自身を含む): 72825480

約数和(自身を除く): 52195500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2339, 2940, 4410, 4678, 7017, 8820, 9356, 11695, 14034, 16373, 21051, 23390, 28068, 32746, 35085, 42102, 46780, 49119, 65492, 70170, 81865, 84204, 98238, 105255, 114611, 140340, 147357, 163730, 196476, 210510, 229222, 245595, 294714, 327460, 343833, 421020, 458444, 491190, 573055, 589428, 687666, 736785, 982380, 1031499, 1146110, 1375332, 1473570, 1719165, 2062998, 2292220, 2947140, 3438330, 4125996, 5157495, 6876660, 10314990, 20629980]

約数ペア:

[(1, 20629980), (2, 10314990), (3, 6876660), (4, 5157495), (5, 4125996), (6, 3438330), (7, 2947140), (9, 2292220), (10, 2062998), (12, 1719165), (14, 1473570), (15, 1375332), (18, 1146110), (20, 1031499), (21, 982380), (28, 736785), (30, 687666), (35, 589428), (36, 573055), (42, 491190), (45, 458444), (49, 421020), (60, 343833), (63, 327460), (70, 294714), (84, 245595), (90, 229222), (98, 210510), (105, 196476), (126, 163730), (140, 147357), (147, 140340), (180, 114611), (196, 105255), (210, 98238), (245, 84204), (252, 81865), (294, 70170), (315, 65492), (420, 49119), (441, 46780), (490, 42102), (588, 35085), (630, 32746), (735, 28068), (882, 23390), (980, 21051), (1260, 16373), (1470, 14034), (1764, 11695), (2205, 9356), (2339, 8820), (2940, 7017), (4410, 4678)]