7904480000

素因数分解:

$2^8\times 5^4\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:552

約数の個数: 180

約数和(自身を含む): 19922622720

約数和(自身を除く): 12018142720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 127, 128, 160, 200, 250, 254, 256, 320, 389, 400, 500, 508, 625, 635, 640, 778, 800, 1000, 1016, 1250, 1270, 1280, 1556, 1600, 1945, 2000, 2032, 2500, 2540, 3112, 3175, 3200, 3890, 4000, 4064, 5000, 5080, 6224, 6350, 6400, 7780, 8000, 8128, 9725, 10000, 10160, 12448, 12700, 15560, 15875, 16000, 16256, 19450, 20000, 20320, 24896, 25400, 31120, 31750, 32000, 32512, 38900, 40000, 40640, 48625, 49403, 49792, 50800, 62240, 63500, 77800, 79375, 80000, 81280, 97250, 98806, 99584, 101600, 124480, 127000, 155600, 158750, 160000, 162560, 194500, 197612, 203200, 243125, 247015, 248960, 254000, 311200, 317500, 389000, 395224, 406400, 486250, 494030, 497920, 508000, 622400, 635000, 778000, 790448, 812800, 972500, 988060, 1016000, 1235075, 1244800, 1270000, 1556000, 1580896, 1945000, 1976120, 2032000, 2470150, 2489600, 2540000, 3112000, 3161792, 3890000, 3952240, 4064000, 4940300, 5080000, 6175375, 6224000, 6323584, 7780000, 7904480, 9880600, 10160000, 12350750, 12448000, 12647168, 15560000, 15808960, 19761200, 20320000, 24701500, 30876875, 31120000, 31617920, 39522400, 49403000, 61753750, 62240000, 63235840, 79044800, 98806000, 123507500, 158089600, 197612000, 247015000, 316179200, 395224000, 494030000, 790448000, 988060000, 1580896000, 1976120000, 3952240000, 7904480000]

約数ペア:

[(1, 7904480000), (2, 3952240000), (4, 1976120000), (5, 1580896000), (8, 988060000), (10, 790448000), (16, 494030000), (20, 395224000), (25, 316179200), (32, 247015000), (40, 197612000), (50, 158089600), (64, 123507500), (80, 98806000), (100, 79044800), (125, 63235840), (127, 62240000), (128, 61753750), (160, 49403000), (200, 39522400), (250, 31617920), (254, 31120000), (256, 30876875), (320, 24701500), (389, 20320000), (400, 19761200), (500, 15808960), (508, 15560000), (625, 12647168), (635, 12448000), (640, 12350750), (778, 10160000), (800, 9880600), (1000, 7904480), (1016, 7780000), (1250, 6323584), (1270, 6224000), (1280, 6175375), (1556, 5080000), (1600, 4940300), (1945, 4064000), (2000, 3952240), (2032, 3890000), (2500, 3161792), (2540, 3112000), (3112, 2540000), (3175, 2489600), (3200, 2470150), (3890, 2032000), (4000, 1976120), (4064, 1945000), (5000, 1580896), (5080, 1556000), (6224, 1270000), (6350, 1244800), (6400, 1235075), (7780, 1016000), (8000, 988060), (8128, 972500), (9725, 812800), (10000, 790448), (10160, 778000), (12448, 635000), (12700, 622400), (15560, 508000), (15875, 497920), (16000, 494030), (16256, 486250), (19450, 406400), (20000, 395224), (20320, 389000), (24896, 317500), (25400, 311200), (31120, 254000), (31750, 248960), (32000, 247015), (32512, 243125), (38900, 203200), (40000, 197612), (40640, 194500), (48625, 162560), (49403, 160000), (49792, 158750), (50800, 155600), (62240, 127000), (63500, 124480), (77800, 101600), (79375, 99584), (80000, 98806), (81280, 97250)]