1230390

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{31}}^1$

素因数の和:64

約数の個数: 120

約数和(自身を含む): 3972672

約数和(自身を除く): 2742282

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 49, 54, 62, 63, 70, 81, 90, 93, 98, 105, 126, 135, 147, 155, 162, 186, 189, 210, 217, 245, 270, 279, 294, 310, 315, 378, 405, 434, 441, 465, 490, 558, 567, 630, 651, 735, 810, 837, 882, 930, 945, 1085, 1134, 1302, 1323, 1395, 1470, 1519, 1674, 1890, 1953, 2170, 2205, 2511, 2646, 2790, 2835, 3038, 3255, 3906, 3969, 4185, 4410, 4557, 5022, 5670, 5859, 6510, 6615, 7595, 7938, 8370, 9114, 9765, 11718, 12555, 13230, 13671, 15190, 17577, 19530, 19845, 22785, 25110, 27342, 29295, 35154, 39690, 41013, 45570, 58590, 68355, 82026, 87885, 123039, 136710, 175770, 205065, 246078, 410130, 615195, 1230390]

約数ペア:

[(1, 1230390), (2, 615195), (3, 410130), (5, 246078), (6, 205065), (7, 175770), (9, 136710), (10, 123039), (14, 87885), (15, 82026), (18, 68355), (21, 58590), (27, 45570), (30, 41013), (31, 39690), (35, 35154), (42, 29295), (45, 27342), (49, 25110), (54, 22785), (62, 19845), (63, 19530), (70, 17577), (81, 15190), (90, 13671), (93, 13230), (98, 12555), (105, 11718), (126, 9765), (135, 9114), (147, 8370), (155, 7938), (162, 7595), (186, 6615), (189, 6510), (210, 5859), (217, 5670), (245, 5022), (270, 4557), (279, 4410), (294, 4185), (310, 3969), (315, 3906), (378, 3255), (405, 3038), (434, 2835), (441, 2790), (465, 2646), (490, 2511), (558, 2205), (567, 2170), (630, 1953), (651, 1890), (735, 1674), (810, 1519), (837, 1470), (882, 1395), (930, 1323), (945, 1302), (1085, 1134)]