28747520

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 70836864

約数和(自身を除く): 42089344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 592, 607, 640, 740, 1184, 1214, 1280, 1480, 2368, 2428, 2960, 3035, 4736, 4856, 5920, 6070, 9472, 9712, 11840, 12140, 19424, 22459, 23680, 24280, 38848, 44918, 47360, 48560, 77696, 89836, 97120, 112295, 155392, 179672, 194240, 224590, 359344, 388480, 449180, 718688, 776960, 898360, 1437376, 1796720, 2874752, 3593440, 5749504, 7186880, 14373760, 28747520]

約数ペア:

[(1, 28747520), (2, 14373760), (4, 7186880), (5, 5749504), (8, 3593440), (10, 2874752), (16, 1796720), (20, 1437376), (32, 898360), (37, 776960), (40, 718688), (64, 449180), (74, 388480), (80, 359344), (128, 224590), (148, 194240), (160, 179672), (185, 155392), (256, 112295), (296, 97120), (320, 89836), (370, 77696), (592, 48560), (607, 47360), (640, 44918), (740, 38848), (1184, 24280), (1214, 23680), (1280, 22459), (1480, 19424), (2368, 12140), (2428, 11840), (2960, 9712), (3035, 9472), (4736, 6070), (4856, 5920)]