720289220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{12049}}^1$

素因数の和:12133

約数の個数: 72

約数和(自身を含む): 1788557400

約数和(自身を除く): 1068268180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1708, 2135, 2989, 4270, 5978, 8540, 11956, 12049, 14945, 24098, 29890, 48196, 59780, 60245, 84343, 120490, 168686, 240980, 337372, 421715, 590401, 734989, 843430, 1180802, 1469978, 1686860, 2361604, 2939956, 2952005, 3674945, 5144923, 5904010, 7349890, 10289846, 11808020, 14699780, 20579692, 25724615, 36014461, 51449230, 72028922, 102898460, 144057844, 180072305, 360144610, 720289220]

約数ペア:

[(1, 720289220), (2, 360144610), (4, 180072305), (5, 144057844), (7, 102898460), (10, 72028922), (14, 51449230), (20, 36014461), (28, 25724615), (35, 20579692), (49, 14699780), (61, 11808020), (70, 10289846), (98, 7349890), (122, 5904010), (140, 5144923), (196, 3674945), (244, 2952005), (245, 2939956), (305, 2361604), (427, 1686860), (490, 1469978), (610, 1180802), (854, 843430), (980, 734989), (1220, 590401), (1708, 421715), (2135, 337372), (2989, 240980), (4270, 168686), (5978, 120490), (8540, 84343), (11956, 60245), (12049, 59780), (14945, 48196), (24098, 29890)]