281320000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:586

約数の個数: 140

約数和(自身を含む): 752630956

約数和(自身を除く): 471310956

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 320, 325, 400, 416, 500, 520, 541, 625, 650, 800, 832, 1000, 1040, 1082, 1250, 1300, 1600, 1625, 2000, 2080, 2164, 2500, 2600, 2705, 3250, 4000, 4160, 4328, 5000, 5200, 5410, 6500, 7033, 8000, 8125, 8656, 10000, 10400, 10820, 13000, 13525, 14066, 16250, 17312, 20000, 20800, 21640, 26000, 27050, 28132, 32500, 34624, 35165, 40000, 43280, 52000, 54100, 56264, 65000, 67625, 70330, 86560, 104000, 108200, 112528, 130000, 135250, 140660, 173120, 175825, 216400, 225056, 260000, 270500, 281320, 338125, 351650, 432800, 450112, 520000, 541000, 562640, 676250, 703300, 865600, 879125, 1082000, 1125280, 1352500, 1406600, 1758250, 2164000, 2250560, 2705000, 2813200, 3516500, 4328000, 4395625, 5410000, 5626400, 7033000, 8791250, 10820000, 11252800, 14066000, 17582500, 21640000, 28132000, 35165000, 56264000, 70330000, 140660000, 281320000]

約数ペア:

[(1, 281320000), (2, 140660000), (4, 70330000), (5, 56264000), (8, 35165000), (10, 28132000), (13, 21640000), (16, 17582500), (20, 14066000), (25, 11252800), (26, 10820000), (32, 8791250), (40, 7033000), (50, 5626400), (52, 5410000), (64, 4395625), (65, 4328000), (80, 3516500), (100, 2813200), (104, 2705000), (125, 2250560), (130, 2164000), (160, 1758250), (200, 1406600), (208, 1352500), (250, 1125280), (260, 1082000), (320, 879125), (325, 865600), (400, 703300), (416, 676250), (500, 562640), (520, 541000), (541, 520000), (625, 450112), (650, 432800), (800, 351650), (832, 338125), (1000, 281320), (1040, 270500), (1082, 260000), (1250, 225056), (1300, 216400), (1600, 175825), (1625, 173120), (2000, 140660), (2080, 135250), (2164, 130000), (2500, 112528), (2600, 108200), (2705, 104000), (3250, 86560), (4000, 70330), (4160, 67625), (4328, 65000), (5000, 56264), (5200, 54100), (5410, 52000), (6500, 43280), (7033, 40000), (8000, 35165), (8125, 34624), (8656, 32500), (10000, 28132), (10400, 27050), (10820, 26000), (13000, 21640), (13525, 20800), (14066, 20000), (16250, 17312)]