23900000

素因数分解:

$2^5\times 5^5\times {\mathrm{239}}^1$

素因数の和:274

約数の個数: 72

約数和(自身を含む): 59058720

約数和(自身を除く): 35158720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 239, 250, 400, 478, 500, 625, 800, 956, 1000, 1195, 1250, 1912, 2000, 2390, 2500, 3125, 3824, 4000, 4780, 5000, 5975, 6250, 7648, 9560, 10000, 11950, 12500, 19120, 20000, 23900, 25000, 29875, 38240, 47800, 50000, 59750, 95600, 100000, 119500, 149375, 191200, 239000, 298750, 478000, 597500, 746875, 956000, 1195000, 1493750, 2390000, 2987500, 4780000, 5975000, 11950000, 23900000]

約数ペア:

[(1, 23900000), (2, 11950000), (4, 5975000), (5, 4780000), (8, 2987500), (10, 2390000), (16, 1493750), (20, 1195000), (25, 956000), (32, 746875), (40, 597500), (50, 478000), (80, 298750), (100, 239000), (125, 191200), (160, 149375), (200, 119500), (239, 100000), (250, 95600), (400, 59750), (478, 50000), (500, 47800), (625, 38240), (800, 29875), (956, 25000), (1000, 23900), (1195, 20000), (1250, 19120), (1912, 12500), (2000, 11950), (2390, 10000), (2500, 9560), (3125, 7648), (3824, 6250), (4000, 5975), (4780, 5000)]