201804980020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{751}}^1\times {\mathrm{274199}}^1$

素因数の和:274973

約数の個数: 72

約数和(自身を含む): 493638969600

約数和(自身を除く): 291833989580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 751, 980, 1502, 3004, 3755, 5257, 7510, 10514, 15020, 21028, 26285, 36799, 52570, 73598, 105140, 147196, 183995, 274199, 367990, 548398, 735980, 1096796, 1370995, 1919393, 2741990, 3838786, 5483980, 7677572, 9596965, 13435751, 19193930, 26871502, 38387860, 53743004, 67178755, 134357510, 205923449, 268715020, 411846898, 823693796, 1029617245, 1441464143, 2059234490, 2882928286, 4118468980, 5765856572, 7207320715, 10090249001, 14414641430, 20180498002, 28829282860, 40360996004, 50451245005, 100902490010, 201804980020]

約数ペア:

[(1, 201804980020), (2, 100902490010), (4, 50451245005), (5, 40360996004), (7, 28829282860), (10, 20180498002), (14, 14414641430), (20, 10090249001), (28, 7207320715), (35, 5765856572), (49, 4118468980), (70, 2882928286), (98, 2059234490), (140, 1441464143), (196, 1029617245), (245, 823693796), (490, 411846898), (751, 268715020), (980, 205923449), (1502, 134357510), (3004, 67178755), (3755, 53743004), (5257, 38387860), (7510, 26871502), (10514, 19193930), (15020, 13435751), (21028, 9596965), (26285, 7677572), (36799, 5483980), (52570, 3838786), (73598, 2741990), (105140, 1919393), (147196, 1370995), (183995, 1096796), (274199, 735980), (367990, 548398)]