28519380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 94348800

約数和(自身を除く): 65829420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 269, 279, 285, 310, 342, 372, 380, 465, 538, 558, 570, 589, 620, 684, 807, 855, 930, 1076, 1116, 1140, 1178, 1345, 1395, 1614, 1710, 1767, 1860, 2356, 2421, 2690, 2790, 2945, 3228, 3420, 3534, 4035, 4842, 5111, 5301, 5380, 5580, 5890, 7068, 8070, 8339, 8835, 9684, 10222, 10602, 11780, 12105, 15333, 16140, 16678, 17670, 20444, 21204, 24210, 25017, 25555, 26505, 30666, 33356, 35340, 41695, 45999, 48420, 50034, 51110, 53010, 61332, 75051, 76665, 83390, 91998, 100068, 102220, 106020, 125085, 150102, 153330, 158441, 166780, 183996, 229995, 250170, 300204, 306660, 316882, 375255, 459990, 475323, 500340, 633764, 750510, 792205, 919980, 950646, 1425969, 1501020, 1584410, 1901292, 2376615, 2851938, 3168820, 4753230, 5703876, 7129845, 9506460, 14259690, 28519380]

約数ペア:

[(1, 28519380), (2, 14259690), (3, 9506460), (4, 7129845), (5, 5703876), (6, 4753230), (9, 3168820), (10, 2851938), (12, 2376615), (15, 1901292), (18, 1584410), (19, 1501020), (20, 1425969), (30, 950646), (31, 919980), (36, 792205), (38, 750510), (45, 633764), (57, 500340), (60, 475323), (62, 459990), (76, 375255), (90, 316882), (93, 306660), (95, 300204), (114, 250170), (124, 229995), (155, 183996), (171, 166780), (180, 158441), (186, 153330), (190, 150102), (228, 125085), (269, 106020), (279, 102220), (285, 100068), (310, 91998), (342, 83390), (372, 76665), (380, 75051), (465, 61332), (538, 53010), (558, 51110), (570, 50034), (589, 48420), (620, 45999), (684, 41695), (807, 35340), (855, 33356), (930, 30666), (1076, 26505), (1116, 25555), (1140, 25017), (1178, 24210), (1345, 21204), (1395, 20444), (1614, 17670), (1710, 16678), (1767, 16140), (1860, 15333), (2356, 12105), (2421, 11780), (2690, 10602), (2790, 10222), (2945, 9684), (3228, 8835), (3420, 8339), (3534, 8070), (4035, 7068), (4842, 5890), (5111, 5580), (5301, 5380)]