402390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 1111968

約数和(自身を除く): 709578

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 263, 306, 510, 526, 765, 789, 1315, 1530, 1578, 2367, 2630, 3945, 4471, 4734, 7890, 8942, 11835, 13413, 22355, 23670, 26826, 40239, 44710, 67065, 80478, 134130, 201195, 402390]

約数ペア:

[(1, 402390), (2, 201195), (3, 134130), (5, 80478), (6, 67065), (9, 44710), (10, 40239), (15, 26826), (17, 23670), (18, 22355), (30, 13413), (34, 11835), (45, 8942), (51, 7890), (85, 4734), (90, 4471), (102, 3945), (153, 2630), (170, 2367), (255, 1578), (263, 1530), (306, 1315), (510, 789), (526, 765)]