15537920

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 38018400

約数和(自身を除く): 22480480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 199, 244, 256, 305, 320, 398, 488, 610, 640, 796, 976, 995, 1220, 1280, 1592, 1952, 1990, 2440, 3184, 3904, 3980, 4880, 6368, 7808, 7960, 9760, 12139, 12736, 15616, 15920, 19520, 24278, 25472, 31840, 39040, 48556, 50944, 60695, 63680, 78080, 97112, 121390, 127360, 194224, 242780, 254720, 388448, 485560, 776896, 971120, 1553792, 1942240, 3107584, 3884480, 7768960, 15537920]

約数ペア:

[(1, 15537920), (2, 7768960), (4, 3884480), (5, 3107584), (8, 1942240), (10, 1553792), (16, 971120), (20, 776896), (32, 485560), (40, 388448), (61, 254720), (64, 242780), (80, 194224), (122, 127360), (128, 121390), (160, 97112), (199, 78080), (244, 63680), (256, 60695), (305, 50944), (320, 48556), (398, 39040), (488, 31840), (610, 25472), (640, 24278), (796, 19520), (976, 15920), (995, 15616), (1220, 12736), (1280, 12139), (1592, 9760), (1952, 7960), (1990, 7808), (2440, 6368), (3184, 4880), (3904, 3980)]