18992890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{467}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 21341222

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 467, 490, 581, 830, 934, 1162, 2335, 2905, 3269, 4067, 4670, 5810, 6538, 8134, 16345, 20335, 22883, 32690, 38761, 40670, 45766, 77522, 114415, 193805, 228830, 271327, 387610, 542654, 1356635, 1899289, 2713270, 3798578, 9496445, 18992890]

約数ペア:

[(1, 18992890), (2, 9496445), (5, 3798578), (7, 2713270), (10, 1899289), (14, 1356635), (35, 542654), (49, 387610), (70, 271327), (83, 228830), (98, 193805), (166, 114415), (245, 77522), (415, 45766), (467, 40670), (490, 38761), (581, 32690), (830, 22883), (934, 20335), (1162, 16345), (2335, 8134), (2905, 6538), (3269, 5810), (4067, 4670)]