28715850

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 80352000

約数和(自身を除く): 51636150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 89, 90, 135, 150, 178, 225, 239, 267, 270, 445, 450, 478, 534, 675, 717, 801, 890, 1195, 1335, 1350, 1434, 1602, 2151, 2225, 2390, 2403, 2670, 3585, 4005, 4302, 4450, 4806, 5975, 6453, 6675, 7170, 8010, 10755, 11950, 12015, 12906, 13350, 17925, 20025, 21271, 21510, 24030, 32265, 35850, 40050, 42542, 53775, 60075, 63813, 64530, 106355, 107550, 120150, 127626, 161325, 191439, 212710, 319065, 322650, 382878, 531775, 574317, 638130, 957195, 1063550, 1148634, 1595325, 1914390, 2871585, 3190650, 4785975, 5743170, 9571950, 14357925, 28715850]

約数ペア:

[(1, 28715850), (2, 14357925), (3, 9571950), (5, 5743170), (6, 4785975), (9, 3190650), (10, 2871585), (15, 1914390), (18, 1595325), (25, 1148634), (27, 1063550), (30, 957195), (45, 638130), (50, 574317), (54, 531775), (75, 382878), (89, 322650), (90, 319065), (135, 212710), (150, 191439), (178, 161325), (225, 127626), (239, 120150), (267, 107550), (270, 106355), (445, 64530), (450, 63813), (478, 60075), (534, 53775), (675, 42542), (717, 40050), (801, 35850), (890, 32265), (1195, 24030), (1335, 21510), (1350, 21271), (1434, 20025), (1602, 17925), (2151, 13350), (2225, 12906), (2390, 12015), (2403, 11950), (2670, 10755), (3585, 8010), (4005, 7170), (4302, 6675), (4450, 6453), (4806, 5975)]