25911040

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 64165248

約数和(自身を除く): 38254208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 653, 992, 1240, 1280, 1306, 1984, 2480, 2612, 3265, 3968, 4960, 5224, 6530, 7936, 9920, 10448, 13060, 19840, 20243, 20896, 26120, 39680, 40486, 41792, 52240, 80972, 83584, 101215, 104480, 161944, 167168, 202430, 208960, 323888, 404860, 417920, 647776, 809720, 835840, 1295552, 1619440, 2591104, 3238880, 5182208, 6477760, 12955520, 25911040]

約数ペア:

[(1, 25911040), (2, 12955520), (4, 6477760), (5, 5182208), (8, 3238880), (10, 2591104), (16, 1619440), (20, 1295552), (31, 835840), (32, 809720), (40, 647776), (62, 417920), (64, 404860), (80, 323888), (124, 208960), (128, 202430), (155, 167168), (160, 161944), (248, 104480), (256, 101215), (310, 83584), (320, 80972), (496, 52240), (620, 41792), (640, 40486), (653, 39680), (992, 26120), (1240, 20896), (1280, 20243), (1306, 19840), (1984, 13060), (2480, 10448), (2612, 9920), (3265, 7936), (3968, 6530), (4960, 5224)]