28387320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 94832640

約数和(自身を除く): 66445320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 587, 620, 744, 780, 806, 930, 1174, 1209, 1240, 1560, 1612, 1761, 1860, 2015, 2348, 2418, 2935, 3224, 3522, 3720, 4030, 4696, 4836, 5870, 6045, 7044, 7631, 8060, 8805, 9672, 11740, 12090, 14088, 15262, 16120, 17610, 18197, 22893, 23480, 24180, 30524, 35220, 36394, 38155, 45786, 48360, 54591, 61048, 70440, 72788, 76310, 90985, 91572, 109182, 114465, 145576, 152620, 181970, 183144, 218364, 228930, 236561, 272955, 305240, 363940, 436728, 457860, 473122, 545910, 709683, 727880, 915720, 946244, 1091820, 1182805, 1419366, 1892488, 2183640, 2365610, 2838732, 3548415, 4731220, 5677464, 7096830, 9462440, 14193660, 28387320]

約数ペア:

[(1, 28387320), (2, 14193660), (3, 9462440), (4, 7096830), (5, 5677464), (6, 4731220), (8, 3548415), (10, 2838732), (12, 2365610), (13, 2183640), (15, 1892488), (20, 1419366), (24, 1182805), (26, 1091820), (30, 946244), (31, 915720), (39, 727880), (40, 709683), (52, 545910), (60, 473122), (62, 457860), (65, 436728), (78, 363940), (93, 305240), (104, 272955), (120, 236561), (124, 228930), (130, 218364), (155, 183144), (156, 181970), (186, 152620), (195, 145576), (248, 114465), (260, 109182), (310, 91572), (312, 90985), (372, 76310), (390, 72788), (403, 70440), (465, 61048), (520, 54591), (587, 48360), (620, 45786), (744, 38155), (780, 36394), (806, 35220), (930, 30524), (1174, 24180), (1209, 23480), (1240, 22893), (1560, 18197), (1612, 17610), (1761, 16120), (1860, 15262), (2015, 14088), (2348, 12090), (2418, 11740), (2935, 9672), (3224, 8805), (3522, 8060), (3720, 7631), (4030, 7044), (4696, 6045), (4836, 5870)]