289598720

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3709}}^1$

素因数の和:3791

約数の個数: 72

約数和(自身を含む): 705241320

約数和(自身を除く): 415642600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1952, 2440, 3709, 3904, 4880, 7418, 7808, 9760, 14836, 15616, 18545, 19520, 29672, 37090, 39040, 59344, 74180, 78080, 118688, 148360, 226249, 237376, 296720, 452498, 474752, 593440, 904996, 949504, 1131245, 1186880, 1809992, 2262490, 2373760, 3619984, 4524980, 4747520, 7239968, 9049960, 14479936, 18099920, 28959872, 36199840, 57919744, 72399680, 144799360, 289598720]

約数ペア:

[(1, 289598720), (2, 144799360), (4, 72399680), (5, 57919744), (8, 36199840), (10, 28959872), (16, 18099920), (20, 14479936), (32, 9049960), (40, 7239968), (61, 4747520), (64, 4524980), (80, 3619984), (122, 2373760), (128, 2262490), (160, 1809992), (244, 1186880), (256, 1131245), (305, 949504), (320, 904996), (488, 593440), (610, 474752), (640, 452498), (976, 296720), (1220, 237376), (1280, 226249), (1952, 148360), (2440, 118688), (3709, 78080), (3904, 74180), (4880, 59344), (7418, 39040), (7808, 37090), (9760, 29672), (14836, 19520), (15616, 18545)]