19412820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 216

約数和(自身を含む): 71705088

約数和(自身を除く): 52292268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 71, 84, 90, 93, 98, 105, 124, 126, 140, 142, 147, 155, 180, 186, 196, 210, 213, 217, 245, 252, 279, 284, 294, 310, 315, 355, 372, 420, 426, 434, 441, 465, 490, 497, 558, 588, 620, 630, 639, 651, 710, 735, 852, 868, 882, 930, 980, 994, 1065, 1085, 1116, 1260, 1278, 1302, 1395, 1420, 1470, 1491, 1519, 1764, 1860, 1953, 1988, 2130, 2170, 2201, 2205, 2485, 2556, 2604, 2790, 2940, 2982, 3038, 3195, 3255, 3479, 3906, 4260, 4340, 4402, 4410, 4473, 4557, 4970, 5580, 5964, 6076, 6390, 6510, 6603, 6958, 7455, 7595, 7812, 8804, 8820, 8946, 9114, 9765, 9940, 10437, 11005, 12780, 13020, 13206, 13671, 13916, 14910, 15190, 15407, 17395, 17892, 18228, 19530, 19809, 20874, 22010, 22365, 22785, 26412, 27342, 29820, 30380, 30814, 31311, 33015, 34790, 39060, 39618, 41748, 44020, 44730, 45570, 46221, 52185, 54684, 61628, 62622, 66030, 68355, 69580, 77035, 79236, 89460, 91140, 92442, 99045, 104370, 107849, 125244, 132060, 136710, 138663, 154070, 156555, 184884, 198090, 208740, 215698, 231105, 273420, 277326, 308140, 313110, 323547, 396180, 431396, 462210, 539245, 554652, 626220, 647094, 693315, 924420, 970641, 1078490, 1294188, 1386630, 1617735, 1941282, 2156980, 2773260, 3235470, 3882564, 4853205, 6470940, 9706410, 19412820]

約数ペア:

[(1, 19412820), (2, 9706410), (3, 6470940), (4, 4853205), (5, 3882564), (6, 3235470), (7, 2773260), (9, 2156980), (10, 1941282), (12, 1617735), (14, 1386630), (15, 1294188), (18, 1078490), (20, 970641), (21, 924420), (28, 693315), (30, 647094), (31, 626220), (35, 554652), (36, 539245), (42, 462210), (45, 431396), (49, 396180), (60, 323547), (62, 313110), (63, 308140), (70, 277326), (71, 273420), (84, 231105), (90, 215698), (93, 208740), (98, 198090), (105, 184884), (124, 156555), (126, 154070), (140, 138663), (142, 136710), (147, 132060), (155, 125244), (180, 107849), (186, 104370), (196, 99045), (210, 92442), (213, 91140), (217, 89460), (245, 79236), (252, 77035), (279, 69580), (284, 68355), (294, 66030), (310, 62622), (315, 61628), (355, 54684), (372, 52185), (420, 46221), (426, 45570), (434, 44730), (441, 44020), (465, 41748), (490, 39618), (497, 39060), (558, 34790), (588, 33015), (620, 31311), (630, 30814), (639, 30380), (651, 29820), (710, 27342), (735, 26412), (852, 22785), (868, 22365), (882, 22010), (930, 20874), (980, 19809), (994, 19530), (1065, 18228), (1085, 17892), (1116, 17395), (1260, 15407), (1278, 15190), (1302, 14910), (1395, 13916), (1420, 13671), (1470, 13206), (1491, 13020), (1519, 12780), (1764, 11005), (1860, 10437), (1953, 9940), (1988, 9765), (2130, 9114), (2170, 8946), (2201, 8820), (2205, 8804), (2485, 7812), (2556, 7595), (2604, 7455), (2790, 6958), (2940, 6603), (2982, 6510), (3038, 6390), (3195, 6076), (3255, 5964), (3479, 5580), (3906, 4970), (4260, 4557), (4340, 4473), (4402, 4410)]