28776990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 128

約数和(自身を含む): 81285120

約数和(自身を除く): 52508130

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 31, 33, 55, 58, 62, 66, 87, 93, 97, 110, 145, 155, 165, 174, 186, 194, 290, 291, 310, 319, 330, 341, 435, 465, 485, 582, 638, 682, 870, 899, 930, 957, 970, 1023, 1067, 1455, 1595, 1705, 1798, 1914, 2046, 2134, 2697, 2813, 2910, 3007, 3190, 3201, 3410, 4495, 4785, 5115, 5335, 5394, 5626, 6014, 6402, 8439, 8990, 9021, 9570, 9889, 10230, 10670, 13485, 14065, 15035, 16005, 16878, 18042, 19778, 26970, 28130, 29667, 30070, 30943, 32010, 33077, 42195, 45105, 49445, 59334, 61886, 66154, 84390, 87203, 90210, 92829, 98890, 99231, 148335, 154715, 165385, 174406, 185658, 198462, 261609, 296670, 309430, 330770, 436015, 464145, 496155, 523218, 872030, 928290, 959233, 992310, 1308045, 1918466, 2616090, 2877699, 4796165, 5755398, 9592330, 14388495, 28776990]

約数ペア:

[(1, 28776990), (2, 14388495), (3, 9592330), (5, 5755398), (6, 4796165), (10, 2877699), (11, 2616090), (15, 1918466), (22, 1308045), (29, 992310), (30, 959233), (31, 928290), (33, 872030), (55, 523218), (58, 496155), (62, 464145), (66, 436015), (87, 330770), (93, 309430), (97, 296670), (110, 261609), (145, 198462), (155, 185658), (165, 174406), (174, 165385), (186, 154715), (194, 148335), (290, 99231), (291, 98890), (310, 92829), (319, 90210), (330, 87203), (341, 84390), (435, 66154), (465, 61886), (485, 59334), (582, 49445), (638, 45105), (682, 42195), (870, 33077), (899, 32010), (930, 30943), (957, 30070), (970, 29667), (1023, 28130), (1067, 26970), (1455, 19778), (1595, 18042), (1705, 16878), (1798, 16005), (1914, 15035), (2046, 14065), (2134, 13485), (2697, 10670), (2813, 10230), (2910, 9889), (3007, 9570), (3190, 9021), (3201, 8990), (3410, 8439), (4495, 6402), (4785, 6014), (5115, 5626), (5335, 5394)]