40718720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 128

約数和(自身を含む): 113832000

約数和(自身を除く): 73113280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 149, 160, 224, 244, 280, 298, 305, 320, 427, 448, 488, 560, 596, 610, 640, 745, 854, 896, 976, 1043, 1120, 1192, 1220, 1490, 1708, 1952, 2086, 2135, 2240, 2384, 2440, 2980, 3416, 3904, 4172, 4270, 4480, 4768, 4880, 5215, 5960, 6832, 7808, 8344, 8540, 9089, 9536, 9760, 10430, 11920, 13664, 16688, 17080, 18178, 19072, 19520, 20860, 23840, 27328, 33376, 34160, 36356, 39040, 41720, 45445, 47680, 54656, 63623, 66752, 68320, 72712, 83440, 90890, 95360, 127246, 133504, 136640, 145424, 166880, 181780, 254492, 273280, 290848, 318115, 333760, 363560, 508984, 581696, 636230, 667520, 727120, 1017968, 1163392, 1272460, 1454240, 2035936, 2544920, 2908480, 4071872, 5089840, 5816960, 8143744, 10179680, 20359360, 40718720]

約数ペア:

[(1, 40718720), (2, 20359360), (4, 10179680), (5, 8143744), (7, 5816960), (8, 5089840), (10, 4071872), (14, 2908480), (16, 2544920), (20, 2035936), (28, 1454240), (32, 1272460), (35, 1163392), (40, 1017968), (56, 727120), (61, 667520), (64, 636230), (70, 581696), (80, 508984), (112, 363560), (122, 333760), (128, 318115), (140, 290848), (149, 273280), (160, 254492), (224, 181780), (244, 166880), (280, 145424), (298, 136640), (305, 133504), (320, 127246), (427, 95360), (448, 90890), (488, 83440), (560, 72712), (596, 68320), (610, 66752), (640, 63623), (745, 54656), (854, 47680), (896, 45445), (976, 41720), (1043, 39040), (1120, 36356), (1192, 34160), (1220, 33376), (1490, 27328), (1708, 23840), (1952, 20860), (2086, 19520), (2135, 19072), (2240, 18178), (2384, 17080), (2440, 16688), (2980, 13664), (3416, 11920), (3904, 10430), (4172, 9760), (4270, 9536), (4480, 9089), (4768, 8540), (4880, 8344), (5215, 7808), (5960, 6832)]