209929230

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 640864224

約数和(自身を除く): 430934994

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 181, 210, 245, 263, 294, 315, 362, 441, 490, 526, 543, 630, 735, 789, 882, 905, 1086, 1267, 1315, 1470, 1578, 1629, 1810, 1841, 2205, 2367, 2534, 2630, 2715, 3258, 3682, 3801, 3945, 4410, 4734, 5430, 5523, 6335, 7602, 7890, 8145, 8869, 9205, 11046, 11403, 11835, 12670, 12887, 16290, 16569, 17738, 18410, 19005, 22806, 23670, 25774, 26607, 27615, 33138, 38010, 38661, 44345, 47603, 53214, 55230, 57015, 64435, 77322, 79821, 82845, 88690, 95206, 114030, 115983, 128870, 133035, 142809, 159642, 165690, 193305, 231966, 238015, 266070, 285618, 333221, 386610, 399105, 428427, 476030, 579915, 666442, 714045, 798210, 856854, 999663, 1159830, 1428090, 1666105, 1999326, 2142135, 2332547, 2998989, 3332210, 4284270, 4665094, 4998315, 5997978, 6997641, 9996630, 11662735, 13995282, 14994945, 20992923, 23325470, 29989890, 34988205, 41985846, 69976410, 104964615, 209929230]

約数ペア:

[(1, 209929230), (2, 104964615), (3, 69976410), (5, 41985846), (6, 34988205), (7, 29989890), (9, 23325470), (10, 20992923), (14, 14994945), (15, 13995282), (18, 11662735), (21, 9996630), (30, 6997641), (35, 5997978), (42, 4998315), (45, 4665094), (49, 4284270), (63, 3332210), (70, 2998989), (90, 2332547), (98, 2142135), (105, 1999326), (126, 1666105), (147, 1428090), (181, 1159830), (210, 999663), (245, 856854), (263, 798210), (294, 714045), (315, 666442), (362, 579915), (441, 476030), (490, 428427), (526, 399105), (543, 386610), (630, 333221), (735, 285618), (789, 266070), (882, 238015), (905, 231966), (1086, 193305), (1267, 165690), (1315, 159642), (1470, 142809), (1578, 133035), (1629, 128870), (1810, 115983), (1841, 114030), (2205, 95206), (2367, 88690), (2534, 82845), (2630, 79821), (2715, 77322), (3258, 64435), (3682, 57015), (3801, 55230), (3945, 53214), (4410, 47603), (4734, 44345), (5430, 38661), (5523, 38010), (6335, 33138), (7602, 27615), (7890, 26607), (8145, 25774), (8869, 23670), (9205, 22806), (11046, 19005), (11403, 18410), (11835, 17738), (12670, 16569), (12887, 16290)]