54890240

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 144469920

約数和(自身を除く): 89579680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 61, 64, 74, 76, 80, 95, 122, 128, 148, 152, 160, 185, 190, 244, 256, 296, 304, 305, 320, 370, 380, 488, 592, 608, 610, 640, 703, 740, 760, 976, 1159, 1184, 1216, 1220, 1280, 1406, 1480, 1520, 1952, 2257, 2318, 2368, 2432, 2440, 2812, 2960, 3040, 3515, 3904, 4514, 4636, 4736, 4864, 4880, 5624, 5795, 5920, 6080, 7030, 7808, 9028, 9272, 9472, 9760, 11248, 11285, 11590, 11840, 12160, 14060, 15616, 18056, 18544, 19520, 22496, 22570, 23180, 23680, 24320, 28120, 36112, 37088, 39040, 42883, 44992, 45140, 46360, 47360, 56240, 72224, 74176, 78080, 85766, 89984, 90280, 92720, 112480, 144448, 148352, 171532, 179968, 180560, 185440, 214415, 224960, 288896, 296704, 343064, 361120, 370880, 428830, 449920, 577792, 686128, 722240, 741760, 857660, 899840, 1372256, 1444480, 1483520, 1715320, 2744512, 2888960, 3430640, 5489024, 6861280, 10978048, 13722560, 27445120, 54890240]

約数ペア:

[(1, 54890240), (2, 27445120), (4, 13722560), (5, 10978048), (8, 6861280), (10, 5489024), (16, 3430640), (19, 2888960), (20, 2744512), (32, 1715320), (37, 1483520), (38, 1444480), (40, 1372256), (61, 899840), (64, 857660), (74, 741760), (76, 722240), (80, 686128), (95, 577792), (122, 449920), (128, 428830), (148, 370880), (152, 361120), (160, 343064), (185, 296704), (190, 288896), (244, 224960), (256, 214415), (296, 185440), (304, 180560), (305, 179968), (320, 171532), (370, 148352), (380, 144448), (488, 112480), (592, 92720), (608, 90280), (610, 89984), (640, 85766), (703, 78080), (740, 74176), (760, 72224), (976, 56240), (1159, 47360), (1184, 46360), (1216, 45140), (1220, 44992), (1280, 42883), (1406, 39040), (1480, 37088), (1520, 36112), (1952, 28120), (2257, 24320), (2318, 23680), (2368, 23180), (2432, 22570), (2440, 22496), (2812, 19520), (2960, 18544), (3040, 18056), (3515, 15616), (3904, 14060), (4514, 12160), (4636, 11840), (4736, 11590), (4864, 11285), (4880, 11248), (5624, 9760), (5795, 9472), (5920, 9272), (6080, 9028), (7030, 7808)]