28078200

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:862

約数の個数: 144

約数和(自身を含む): 99379800

約数和(自身を除く): 71301600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 50, 57, 60, 72, 75, 76, 90, 95, 100, 114, 120, 150, 152, 171, 180, 190, 200, 225, 228, 285, 300, 342, 360, 380, 450, 456, 475, 570, 600, 684, 760, 821, 855, 900, 950, 1140, 1368, 1425, 1642, 1710, 1800, 1900, 2280, 2463, 2850, 3284, 3420, 3800, 4105, 4275, 4926, 5700, 6568, 6840, 7389, 8210, 8550, 9852, 11400, 12315, 14778, 15599, 16420, 17100, 19704, 20525, 24630, 29556, 31198, 32840, 34200, 36945, 41050, 46797, 49260, 59112, 61575, 62396, 73890, 77995, 82100, 93594, 98520, 123150, 124792, 140391, 147780, 155990, 164200, 184725, 187188, 233985, 246300, 280782, 295560, 311980, 369450, 374376, 389975, 467970, 492600, 561564, 623960, 701955, 738900, 779950, 935940, 1123128, 1169925, 1403910, 1477800, 1559900, 1871880, 2339850, 2807820, 3119800, 3509775, 4679700, 5615640, 7019550, 9359400, 14039100, 28078200]

約数ペア:

[(1, 28078200), (2, 14039100), (3, 9359400), (4, 7019550), (5, 5615640), (6, 4679700), (8, 3509775), (9, 3119800), (10, 2807820), (12, 2339850), (15, 1871880), (18, 1559900), (19, 1477800), (20, 1403910), (24, 1169925), (25, 1123128), (30, 935940), (36, 779950), (38, 738900), (40, 701955), (45, 623960), (50, 561564), (57, 492600), (60, 467970), (72, 389975), (75, 374376), (76, 369450), (90, 311980), (95, 295560), (100, 280782), (114, 246300), (120, 233985), (150, 187188), (152, 184725), (171, 164200), (180, 155990), (190, 147780), (200, 140391), (225, 124792), (228, 123150), (285, 98520), (300, 93594), (342, 82100), (360, 77995), (380, 73890), (450, 62396), (456, 61575), (475, 59112), (570, 49260), (600, 46797), (684, 41050), (760, 36945), (821, 34200), (855, 32840), (900, 31198), (950, 29556), (1140, 24630), (1368, 20525), (1425, 19704), (1642, 17100), (1710, 16420), (1800, 15599), (1900, 14778), (2280, 12315), (2463, 11400), (2850, 9852), (3284, 8550), (3420, 8210), (3800, 7389), (4105, 6840), (4275, 6568), (4926, 5700)]