209397980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1427}}^1$

素因数の和:1499

約数の個数: 96

約数和(自身を含む): 518192640

約数和(自身を除く): 308794660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 29, 44, 46, 55, 58, 92, 110, 115, 116, 145, 220, 230, 253, 290, 319, 460, 506, 580, 638, 667, 1012, 1265, 1276, 1334, 1427, 1595, 2530, 2668, 2854, 3190, 3335, 5060, 5708, 6380, 6670, 7135, 7337, 13340, 14270, 14674, 15697, 28540, 29348, 31394, 32821, 36685, 41383, 62788, 65642, 73370, 78485, 82766, 131284, 146740, 156970, 164105, 165532, 206915, 313940, 328210, 361031, 413830, 455213, 656420, 722062, 827660, 910426, 951809, 1444124, 1805155, 1820852, 1903618, 2276065, 3610310, 3807236, 4552130, 4759045, 7220620, 9104260, 9518090, 10469899, 19036180, 20939798, 41879596, 52349495, 104698990, 209397980]

約数ペア:

[(1, 209397980), (2, 104698990), (4, 52349495), (5, 41879596), (10, 20939798), (11, 19036180), (20, 10469899), (22, 9518090), (23, 9104260), (29, 7220620), (44, 4759045), (46, 4552130), (55, 3807236), (58, 3610310), (92, 2276065), (110, 1903618), (115, 1820852), (116, 1805155), (145, 1444124), (220, 951809), (230, 910426), (253, 827660), (290, 722062), (319, 656420), (460, 455213), (506, 413830), (580, 361031), (638, 328210), (667, 313940), (1012, 206915), (1265, 165532), (1276, 164105), (1334, 156970), (1427, 146740), (1595, 131284), (2530, 82766), (2668, 78485), (2854, 73370), (3190, 65642), (3335, 62788), (5060, 41383), (5708, 36685), (6380, 32821), (6670, 31394), (7135, 29348), (7337, 28540), (13340, 15697), (14270, 14674)]