19928700

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1$

素因数の和:106

約数の個数: 216

約数和(自身を含む): 71575280

約数和(自身を除く): 51646580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 27, 30, 33, 36, 44, 45, 50, 54, 55, 60, 61, 66, 75, 90, 99, 100, 108, 110, 121, 122, 132, 135, 150, 165, 180, 183, 198, 220, 225, 242, 244, 270, 275, 297, 300, 305, 330, 363, 366, 396, 450, 484, 495, 540, 549, 550, 594, 605, 610, 660, 671, 675, 726, 732, 825, 900, 915, 990, 1089, 1098, 1100, 1188, 1210, 1220, 1342, 1350, 1452, 1485, 1525, 1647, 1650, 1815, 1830, 1980, 2013, 2178, 2196, 2420, 2475, 2684, 2700, 2745, 2970, 3025, 3050, 3267, 3294, 3300, 3355, 3630, 3660, 4026, 4356, 4575, 4950, 5445, 5490, 5940, 6039, 6050, 6100, 6534, 6588, 6710, 7260, 7381, 7425, 8052, 8235, 9075, 9150, 9900, 10065, 10890, 10980, 12078, 12100, 13068, 13420, 13725, 14762, 14850, 16335, 16470, 16775, 18117, 18150, 18300, 20130, 21780, 22143, 24156, 27225, 27450, 29524, 29700, 30195, 32670, 32940, 33550, 36234, 36300, 36905, 40260, 41175, 44286, 50325, 54450, 54900, 60390, 65340, 66429, 67100, 72468, 73810, 81675, 82350, 88572, 90585, 100650, 108900, 110715, 120780, 132858, 147620, 150975, 163350, 164700, 181170, 184525, 199287, 201300, 221430, 265716, 301950, 326700, 332145, 362340, 369050, 398574, 442860, 452925, 553575, 603900, 664290, 738100, 797148, 905850, 996435, 1107150, 1328580, 1660725, 1811700, 1992870, 2214300, 3321450, 3985740, 4982175, 6642900, 9964350, 19928700]

約数ペア:

[(1, 19928700), (2, 9964350), (3, 6642900), (4, 4982175), (5, 3985740), (6, 3321450), (9, 2214300), (10, 1992870), (11, 1811700), (12, 1660725), (15, 1328580), (18, 1107150), (20, 996435), (22, 905850), (25, 797148), (27, 738100), (30, 664290), (33, 603900), (36, 553575), (44, 452925), (45, 442860), (50, 398574), (54, 369050), (55, 362340), (60, 332145), (61, 326700), (66, 301950), (75, 265716), (90, 221430), (99, 201300), (100, 199287), (108, 184525), (110, 181170), (121, 164700), (122, 163350), (132, 150975), (135, 147620), (150, 132858), (165, 120780), (180, 110715), (183, 108900), (198, 100650), (220, 90585), (225, 88572), (242, 82350), (244, 81675), (270, 73810), (275, 72468), (297, 67100), (300, 66429), (305, 65340), (330, 60390), (363, 54900), (366, 54450), (396, 50325), (450, 44286), (484, 41175), (495, 40260), (540, 36905), (549, 36300), (550, 36234), (594, 33550), (605, 32940), (610, 32670), (660, 30195), (671, 29700), (675, 29524), (726, 27450), (732, 27225), (825, 24156), (900, 22143), (915, 21780), (990, 20130), (1089, 18300), (1098, 18150), (1100, 18117), (1188, 16775), (1210, 16470), (1220, 16335), (1342, 14850), (1350, 14762), (1452, 13725), (1485, 13420), (1525, 13068), (1647, 12100), (1650, 12078), (1815, 10980), (1830, 10890), (1980, 10065), (2013, 9900), (2178, 9150), (2196, 9075), (2420, 8235), (2475, 8052), (2684, 7425), (2700, 7381), (2745, 7260), (2970, 6710), (3025, 6588), (3050, 6534), (3267, 6100), (3294, 6050), (3300, 6039), (3355, 5940), (3630, 5490), (3660, 5445), (4026, 4950), (4356, 4575)]