20203980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 59609088

約数和(自身を除く): 39405108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 43, 60, 82, 86, 123, 129, 164, 172, 191, 205, 215, 246, 258, 382, 410, 430, 492, 516, 573, 615, 645, 764, 820, 860, 955, 1146, 1230, 1290, 1763, 1910, 2292, 2460, 2580, 2865, 3526, 3820, 5289, 5730, 7052, 7831, 8213, 8815, 10578, 11460, 15662, 16426, 17630, 21156, 23493, 24639, 26445, 31324, 32852, 35260, 39155, 41065, 46986, 49278, 52890, 78310, 82130, 93972, 98556, 105780, 117465, 123195, 156620, 164260, 234930, 246390, 336733, 469860, 492780, 673466, 1010199, 1346932, 1683665, 2020398, 3367330, 4040796, 5050995, 6734660, 10101990, 20203980]

約数ペア:

[(1, 20203980), (2, 10101990), (3, 6734660), (4, 5050995), (5, 4040796), (6, 3367330), (10, 2020398), (12, 1683665), (15, 1346932), (20, 1010199), (30, 673466), (41, 492780), (43, 469860), (60, 336733), (82, 246390), (86, 234930), (123, 164260), (129, 156620), (164, 123195), (172, 117465), (191, 105780), (205, 98556), (215, 93972), (246, 82130), (258, 78310), (382, 52890), (410, 49278), (430, 46986), (492, 41065), (516, 39155), (573, 35260), (615, 32852), (645, 31324), (764, 26445), (820, 24639), (860, 23493), (955, 21156), (1146, 17630), (1230, 16426), (1290, 15662), (1763, 11460), (1910, 10578), (2292, 8815), (2460, 8213), (2580, 7831), (2865, 7052), (3526, 5730), (3820, 5289)]