278231200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:927

約数の個数: 144

約数和(自身を含む): 755951616

約数和(自身を除く): 477720416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 775, 800, 806, 863, 992, 1040, 1240, 1300, 1550, 1612, 1726, 2015, 2080, 2480, 2600, 3100, 3224, 3452, 4030, 4315, 4960, 5200, 6200, 6448, 6904, 8060, 8630, 10075, 10400, 11219, 12400, 12896, 13808, 16120, 17260, 20150, 21575, 22438, 24800, 26753, 27616, 32240, 34520, 40300, 43150, 44876, 53506, 56095, 64480, 69040, 80600, 86300, 89752, 107012, 112190, 133765, 138080, 161200, 172600, 179504, 214024, 224380, 267530, 280475, 322400, 345200, 347789, 359008, 428048, 448760, 535060, 560950, 668825, 690400, 695578, 856096, 897520, 1070120, 1121900, 1337650, 1391156, 1738945, 1795040, 2140240, 2243800, 2675300, 2782312, 3477890, 4280480, 4487600, 5350600, 5564624, 6955780, 8694725, 8975200, 10701200, 11129248, 13911560, 17389450, 21402400, 27823120, 34778900, 55646240, 69557800, 139115600, 278231200]

約数ペア:

[(1, 278231200), (2, 139115600), (4, 69557800), (5, 55646240), (8, 34778900), (10, 27823120), (13, 21402400), (16, 17389450), (20, 13911560), (25, 11129248), (26, 10701200), (31, 8975200), (32, 8694725), (40, 6955780), (50, 5564624), (52, 5350600), (62, 4487600), (65, 4280480), (80, 3477890), (100, 2782312), (104, 2675300), (124, 2243800), (130, 2140240), (155, 1795040), (160, 1738945), (200, 1391156), (208, 1337650), (248, 1121900), (260, 1070120), (310, 897520), (325, 856096), (400, 695578), (403, 690400), (416, 668825), (496, 560950), (520, 535060), (620, 448760), (650, 428048), (775, 359008), (800, 347789), (806, 345200), (863, 322400), (992, 280475), (1040, 267530), (1240, 224380), (1300, 214024), (1550, 179504), (1612, 172600), (1726, 161200), (2015, 138080), (2080, 133765), (2480, 112190), (2600, 107012), (3100, 89752), (3224, 86300), (3452, 80600), (4030, 69040), (4315, 64480), (4960, 56095), (5200, 53506), (6200, 44876), (6448, 43150), (6904, 40300), (8060, 34520), (8630, 32240), (10075, 27616), (10400, 26753), (11219, 24800), (12400, 22438), (12896, 21575), (13808, 20150), (16120, 17260)]