257428710

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{307}}^1$

素因数の和:360

約数の個数: 192

約数和(自身を含む): 844107264

約数和(自身を除く): 586678554

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 55, 63, 66, 70, 77, 90, 99, 105, 110, 121, 126, 154, 165, 198, 210, 231, 242, 307, 315, 330, 363, 385, 462, 495, 605, 614, 630, 693, 726, 770, 847, 921, 990, 1089, 1155, 1210, 1331, 1386, 1535, 1694, 1815, 1842, 2149, 2178, 2310, 2541, 2662, 2763, 3070, 3377, 3465, 3630, 3993, 4235, 4298, 4605, 5082, 5445, 5526, 6447, 6655, 6754, 6930, 7623, 7986, 8470, 9210, 9317, 10131, 10745, 10890, 11979, 12705, 12894, 13310, 13815, 15246, 16885, 18634, 19341, 19965, 20262, 21490, 23639, 23958, 25410, 27630, 27951, 30393, 32235, 33770, 37147, 38115, 38682, 39930, 46585, 47278, 50655, 55902, 59895, 60786, 64470, 70917, 74294, 76230, 83853, 93170, 96705, 101310, 111441, 118195, 119790, 139755, 141834, 151965, 167706, 185735, 193410, 212751, 222882, 236390, 260029, 279510, 303930, 334323, 354585, 371470, 408617, 419265, 425502, 520058, 557205, 668646, 709170, 780087, 817234, 838530, 1063755, 1114410, 1225851, 1300145, 1560174, 1671615, 2043085, 2127510, 2340261, 2451702, 2600290, 2860319, 3343230, 3677553, 3900435, 4086170, 4680522, 5720638, 6129255, 7355106, 7800870, 8580957, 11701305, 12258510, 14301595, 17161914, 18387765, 23402610, 25742871, 28603190, 36775530, 42904785, 51485742, 85809570, 128714355, 257428710]

約数ペア:

[(1, 257428710), (2, 128714355), (3, 85809570), (5, 51485742), (6, 42904785), (7, 36775530), (9, 28603190), (10, 25742871), (11, 23402610), (14, 18387765), (15, 17161914), (18, 14301595), (21, 12258510), (22, 11701305), (30, 8580957), (33, 7800870), (35, 7355106), (42, 6129255), (45, 5720638), (55, 4680522), (63, 4086170), (66, 3900435), (70, 3677553), (77, 3343230), (90, 2860319), (99, 2600290), (105, 2451702), (110, 2340261), (121, 2127510), (126, 2043085), (154, 1671615), (165, 1560174), (198, 1300145), (210, 1225851), (231, 1114410), (242, 1063755), (307, 838530), (315, 817234), (330, 780087), (363, 709170), (385, 668646), (462, 557205), (495, 520058), (605, 425502), (614, 419265), (630, 408617), (693, 371470), (726, 354585), (770, 334323), (847, 303930), (921, 279510), (990, 260029), (1089, 236390), (1155, 222882), (1210, 212751), (1331, 193410), (1386, 185735), (1535, 167706), (1694, 151965), (1815, 141834), (1842, 139755), (2149, 119790), (2178, 118195), (2310, 111441), (2541, 101310), (2662, 96705), (2763, 93170), (3070, 83853), (3377, 76230), (3465, 74294), (3630, 70917), (3993, 64470), (4235, 60786), (4298, 59895), (4605, 55902), (5082, 50655), (5445, 47278), (5526, 46585), (6447, 39930), (6655, 38682), (6754, 38115), (6930, 37147), (7623, 33770), (7986, 32235), (8470, 30393), (9210, 27951), (9317, 27630), (10131, 25410), (10745, 23958), (10890, 23639), (11979, 21490), (12705, 20262), (12894, 19965), (13310, 19341), (13815, 18634), (15246, 16885)]