209787540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 630959616

約数和(自身を除く): 421172076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 61, 62, 86, 93, 122, 124, 129, 155, 172, 183, 186, 215, 244, 258, 305, 310, 366, 372, 430, 465, 516, 610, 620, 645, 732, 860, 915, 930, 1220, 1290, 1333, 1830, 1849, 1860, 1891, 2580, 2623, 2666, 3660, 3698, 3782, 3999, 5246, 5332, 5547, 5673, 6665, 7396, 7564, 7869, 7998, 9245, 9455, 10492, 11094, 11346, 13115, 13330, 15738, 15996, 18490, 18910, 19995, 22188, 22692, 26230, 26660, 27735, 28365, 31476, 36980, 37820, 39345, 39990, 52460, 55470, 56730, 57319, 78690, 79980, 81313, 110940, 112789, 113460, 114638, 157380, 162626, 171957, 225578, 229276, 243939, 286595, 325252, 338367, 343914, 406565, 451156, 487878, 563945, 573190, 676734, 687828, 813130, 859785, 975756, 1127890, 1146380, 1219695, 1353468, 1626260, 1691835, 1719570, 2255780, 2439390, 3383670, 3439140, 3496459, 4878780, 6767340, 6992918, 10489377, 13985836, 17482295, 20978754, 34964590, 41957508, 52446885, 69929180, 104893770, 209787540]

約数ペア:

[(1, 209787540), (2, 104893770), (3, 69929180), (4, 52446885), (5, 41957508), (6, 34964590), (10, 20978754), (12, 17482295), (15, 13985836), (20, 10489377), (30, 6992918), (31, 6767340), (43, 4878780), (60, 3496459), (61, 3439140), (62, 3383670), (86, 2439390), (93, 2255780), (122, 1719570), (124, 1691835), (129, 1626260), (155, 1353468), (172, 1219695), (183, 1146380), (186, 1127890), (215, 975756), (244, 859785), (258, 813130), (305, 687828), (310, 676734), (366, 573190), (372, 563945), (430, 487878), (465, 451156), (516, 406565), (610, 343914), (620, 338367), (645, 325252), (732, 286595), (860, 243939), (915, 229276), (930, 225578), (1220, 171957), (1290, 162626), (1333, 157380), (1830, 114638), (1849, 113460), (1860, 112789), (1891, 110940), (2580, 81313), (2623, 79980), (2666, 78690), (3660, 57319), (3698, 56730), (3782, 55470), (3999, 52460), (5246, 39990), (5332, 39345), (5547, 37820), (5673, 36980), (6665, 31476), (7396, 28365), (7564, 27735), (7869, 26660), (7998, 26230), (9245, 22692), (9455, 22188), (10492, 19995), (11094, 18910), (11346, 18490), (13115, 15996), (13330, 15738)]