215975340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:597

約数の個数: 216

約数和(自身を含む): 779792832

約数和(自身を除く): 563817492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 49, 60, 63, 70, 84, 90, 94, 98, 105, 126, 140, 141, 147, 180, 188, 196, 210, 235, 245, 252, 282, 294, 315, 329, 420, 423, 441, 470, 490, 521, 564, 588, 630, 658, 705, 735, 846, 882, 940, 980, 987, 1042, 1260, 1316, 1410, 1470, 1563, 1645, 1692, 1764, 1974, 2084, 2115, 2205, 2303, 2605, 2820, 2940, 2961, 3126, 3290, 3647, 3948, 4230, 4410, 4606, 4689, 4935, 5210, 5922, 6252, 6580, 6909, 7294, 7815, 8460, 8820, 9212, 9378, 9870, 10420, 10941, 11515, 11844, 13818, 14588, 14805, 15630, 18235, 18756, 19740, 20727, 21882, 23030, 23445, 24487, 25529, 27636, 29610, 31260, 32823, 34545, 36470, 41454, 43764, 46060, 46890, 48974, 51058, 54705, 59220, 65646, 69090, 72940, 73461, 76587, 82908, 93780, 97948, 102116, 103635, 109410, 122435, 127645, 131292, 138180, 146922, 153174, 164115, 171409, 207270, 218820, 220383, 229761, 244870, 255290, 293844, 306348, 328230, 342818, 367305, 382935, 414540, 440766, 459522, 489740, 510580, 514227, 656460, 685636, 734610, 765870, 857045, 881532, 919044, 1028454, 1101915, 1148805, 1199863, 1469220, 1531740, 1542681, 1714090, 2056908, 2203830, 2297610, 2399726, 2571135, 3085362, 3428180, 3599589, 4407660, 4595220, 4799452, 5142270, 5999315, 6170724, 7199178, 7713405, 10284540, 10798767, 11998630, 14398356, 15426810, 17997945, 21597534, 23997260, 30853620, 35995890, 43195068, 53993835, 71991780, 107987670, 215975340]

約数ペア:

[(1, 215975340), (2, 107987670), (3, 71991780), (4, 53993835), (5, 43195068), (6, 35995890), (7, 30853620), (9, 23997260), (10, 21597534), (12, 17997945), (14, 15426810), (15, 14398356), (18, 11998630), (20, 10798767), (21, 10284540), (28, 7713405), (30, 7199178), (35, 6170724), (36, 5999315), (42, 5142270), (45, 4799452), (47, 4595220), (49, 4407660), (60, 3599589), (63, 3428180), (70, 3085362), (84, 2571135), (90, 2399726), (94, 2297610), (98, 2203830), (105, 2056908), (126, 1714090), (140, 1542681), (141, 1531740), (147, 1469220), (180, 1199863), (188, 1148805), (196, 1101915), (210, 1028454), (235, 919044), (245, 881532), (252, 857045), (282, 765870), (294, 734610), (315, 685636), (329, 656460), (420, 514227), (423, 510580), (441, 489740), (470, 459522), (490, 440766), (521, 414540), (564, 382935), (588, 367305), (630, 342818), (658, 328230), (705, 306348), (735, 293844), (846, 255290), (882, 244870), (940, 229761), (980, 220383), (987, 218820), (1042, 207270), (1260, 171409), (1316, 164115), (1410, 153174), (1470, 146922), (1563, 138180), (1645, 131292), (1692, 127645), (1764, 122435), (1974, 109410), (2084, 103635), (2115, 102116), (2205, 97948), (2303, 93780), (2605, 82908), (2820, 76587), (2940, 73461), (2961, 72940), (3126, 69090), (3290, 65646), (3647, 59220), (3948, 54705), (4230, 51058), (4410, 48974), (4606, 46890), (4689, 46060), (4935, 43764), (5210, 41454), (5922, 36470), (6252, 34545), (6580, 32823), (6909, 31260), (7294, 29610), (7815, 27636), (8460, 25529), (8820, 24487), (9212, 23445), (9378, 23030), (9870, 21882), (10420, 20727), (10941, 19740), (11515, 18756), (11844, 18235), (13818, 15630), (14588, 14805)]