644245140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1811}}^1$

素因数の和:1859

約数の個数: 216

約数和(自身を含む): 2307777696

約数和(自身を除く): 1663532556

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 121, 132, 140, 147, 154, 165, 196, 210, 220, 231, 242, 245, 294, 308, 330, 363, 385, 420, 462, 484, 490, 539, 588, 605, 660, 726, 735, 770, 847, 924, 980, 1078, 1155, 1210, 1452, 1470, 1540, 1617, 1694, 1811, 1815, 2156, 2310, 2420, 2541, 2695, 2940, 3234, 3388, 3622, 3630, 4235, 4620, 5082, 5390, 5433, 5929, 6468, 7244, 7260, 8085, 8470, 9055, 10164, 10780, 10866, 11858, 12677, 12705, 16170, 16940, 17787, 18110, 19921, 21732, 23716, 25354, 25410, 27165, 29645, 32340, 35574, 36220, 38031, 39842, 50708, 50820, 54330, 59290, 59763, 63385, 71148, 76062, 79684, 88739, 88935, 99605, 108660, 118580, 119526, 126770, 139447, 152124, 177478, 177870, 190155, 199210, 219131, 239052, 253540, 266217, 278894, 298815, 354956, 355740, 380310, 398420, 418341, 438262, 443695, 532434, 557788, 597630, 657393, 697235, 760620, 836682, 876524, 887390, 976129, 1064868, 1095655, 1195260, 1314786, 1331085, 1394470, 1533917, 1673364, 1774780, 1952258, 2091705, 2191310, 2629572, 2662170, 2788940, 2928387, 3067834, 3286965, 3904516, 4183410, 4382620, 4601751, 4880645, 5324340, 5856774, 6135668, 6573930, 7669585, 8366820, 9203502, 9761290, 10737419, 11713548, 13147860, 14641935, 15339170, 18407004, 19522580, 21474838, 23008755, 29283870, 30678340, 32212257, 42949676, 46017510, 53687095, 58567740, 64424514, 92035020, 107374190, 128849028, 161061285, 214748380, 322122570, 644245140]

約数ペア:

[(1, 644245140), (2, 322122570), (3, 214748380), (4, 161061285), (5, 128849028), (6, 107374190), (7, 92035020), (10, 64424514), (11, 58567740), (12, 53687095), (14, 46017510), (15, 42949676), (20, 32212257), (21, 30678340), (22, 29283870), (28, 23008755), (30, 21474838), (33, 19522580), (35, 18407004), (42, 15339170), (44, 14641935), (49, 13147860), (55, 11713548), (60, 10737419), (66, 9761290), (70, 9203502), (77, 8366820), (84, 7669585), (98, 6573930), (105, 6135668), (110, 5856774), (121, 5324340), (132, 4880645), (140, 4601751), (147, 4382620), (154, 4183410), (165, 3904516), (196, 3286965), (210, 3067834), (220, 2928387), (231, 2788940), (242, 2662170), (245, 2629572), (294, 2191310), (308, 2091705), (330, 1952258), (363, 1774780), (385, 1673364), (420, 1533917), (462, 1394470), (484, 1331085), (490, 1314786), (539, 1195260), (588, 1095655), (605, 1064868), (660, 976129), (726, 887390), (735, 876524), (770, 836682), (847, 760620), (924, 697235), (980, 657393), (1078, 597630), (1155, 557788), (1210, 532434), (1452, 443695), (1470, 438262), (1540, 418341), (1617, 398420), (1694, 380310), (1811, 355740), (1815, 354956), (2156, 298815), (2310, 278894), (2420, 266217), (2541, 253540), (2695, 239052), (2940, 219131), (3234, 199210), (3388, 190155), (3622, 177870), (3630, 177478), (4235, 152124), (4620, 139447), (5082, 126770), (5390, 119526), (5433, 118580), (5929, 108660), (6468, 99605), (7244, 88935), (7260, 88739), (8085, 79684), (8470, 76062), (9055, 71148), (10164, 63385), (10780, 59763), (10866, 59290), (11858, 54330), (12677, 50820), (12705, 50708), (16170, 39842), (16940, 38031), (17787, 36220), (18110, 35574), (19921, 32340), (21732, 29645), (23716, 27165), (25354, 25410)]