172171520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4339}}^1$

素因数の和:4391

約数の個数: 72

約数和(自身を含む): 425806080

約数和(自身を除く): 253634560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4339, 4960, 7936, 8678, 9920, 17356, 19840, 21695, 34712, 39680, 43390, 69424, 86780, 134509, 138848, 173560, 269018, 277696, 347120, 538036, 555392, 672545, 694240, 1076072, 1110784, 1345090, 1388480, 2152144, 2690180, 2776960, 4304288, 5380360, 5553920, 8608576, 10760720, 17217152, 21521440, 34434304, 43042880, 86085760, 172171520]

約数ペア:

[(1, 172171520), (2, 86085760), (4, 43042880), (5, 34434304), (8, 21521440), (10, 17217152), (16, 10760720), (20, 8608576), (31, 5553920), (32, 5380360), (40, 4304288), (62, 2776960), (64, 2690180), (80, 2152144), (124, 1388480), (128, 1345090), (155, 1110784), (160, 1076072), (248, 694240), (256, 672545), (310, 555392), (320, 538036), (496, 347120), (620, 277696), (640, 269018), (992, 173560), (1240, 138848), (1280, 134509), (1984, 86780), (2480, 69424), (3968, 43390), (4339, 39680), (4960, 34712), (7936, 21695), (8678, 19840), (9920, 17356)]