211631420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:113

約数の個数: 216

約数和(自身を含む): 621252576

約数和(自身を除く): 409621156

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 31, 35, 44, 52, 55, 62, 65, 70, 77, 91, 110, 121, 124, 130, 140, 143, 154, 155, 182, 217, 220, 242, 260, 286, 308, 310, 341, 364, 385, 403, 434, 455, 484, 572, 605, 620, 682, 715, 770, 806, 847, 868, 910, 961, 1001, 1085, 1210, 1364, 1430, 1540, 1573, 1612, 1694, 1705, 1820, 1922, 2002, 2015, 2170, 2387, 2420, 2821, 2860, 3146, 3388, 3410, 3751, 3844, 4004, 4030, 4235, 4340, 4433, 4774, 4805, 5005, 5642, 6292, 6727, 6820, 7502, 7865, 8060, 8470, 8866, 9548, 9610, 10010, 10571, 11011, 11284, 11935, 12493, 13454, 14105, 15004, 15730, 16940, 17732, 18755, 19220, 20020, 21142, 22022, 22165, 23870, 24986, 26257, 26908, 28210, 31031, 31460, 33635, 37510, 42284, 44044, 44330, 47740, 48763, 49972, 52514, 52855, 55055, 56420, 62062, 62465, 67270, 73997, 75020, 87451, 88660, 97526, 105028, 105710, 110110, 116281, 124124, 124930, 131285, 134540, 137423, 147994, 155155, 174902, 195052, 211420, 220220, 232562, 243815, 249860, 262570, 274846, 295988, 310310, 341341, 349804, 369985, 437255, 465124, 487630, 525140, 549692, 581405, 620620, 682682, 687115, 739970, 813967, 874510, 961961, 975260, 1162810, 1365364, 1374230, 1479940, 1511653, 1627934, 1706705, 1749020, 1923922, 2325620, 2748460, 3023306, 3255868, 3413410, 3847844, 4069835, 4809805, 6046612, 6826820, 7558265, 8139670, 9619610, 10581571, 15116530, 16279340, 19239220, 21163142, 30233060, 42326284, 52907855, 105815710, 211631420]

約数ペア:

[(1, 211631420), (2, 105815710), (4, 52907855), (5, 42326284), (7, 30233060), (10, 21163142), (11, 19239220), (13, 16279340), (14, 15116530), (20, 10581571), (22, 9619610), (26, 8139670), (28, 7558265), (31, 6826820), (35, 6046612), (44, 4809805), (52, 4069835), (55, 3847844), (62, 3413410), (65, 3255868), (70, 3023306), (77, 2748460), (91, 2325620), (110, 1923922), (121, 1749020), (124, 1706705), (130, 1627934), (140, 1511653), (143, 1479940), (154, 1374230), (155, 1365364), (182, 1162810), (217, 975260), (220, 961961), (242, 874510), (260, 813967), (286, 739970), (308, 687115), (310, 682682), (341, 620620), (364, 581405), (385, 549692), (403, 525140), (434, 487630), (455, 465124), (484, 437255), (572, 369985), (605, 349804), (620, 341341), (682, 310310), (715, 295988), (770, 274846), (806, 262570), (847, 249860), (868, 243815), (910, 232562), (961, 220220), (1001, 211420), (1085, 195052), (1210, 174902), (1364, 155155), (1430, 147994), (1540, 137423), (1573, 134540), (1612, 131285), (1694, 124930), (1705, 124124), (1820, 116281), (1922, 110110), (2002, 105710), (2015, 105028), (2170, 97526), (2387, 88660), (2420, 87451), (2821, 75020), (2860, 73997), (3146, 67270), (3388, 62465), (3410, 62062), (3751, 56420), (3844, 55055), (4004, 52855), (4030, 52514), (4235, 49972), (4340, 48763), (4433, 47740), (4774, 44330), (4805, 44044), (5005, 42284), (5642, 37510), (6292, 33635), (6727, 31460), (6820, 31031), (7502, 28210), (7865, 26908), (8060, 26257), (8470, 24986), (8866, 23870), (9548, 22165), (9610, 22022), (10010, 21142), (10571, 20020), (11011, 19220), (11284, 18755), (11935, 17732), (12493, 16940), (13454, 15730), (14105, 15004)]