1215209980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:959

約数の個数: 96

約数和(自身を含む): 2858103360

約数和(自身を除く): 1642893380

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 313, 323, 340, 380, 601, 626, 646, 1202, 1252, 1292, 1565, 1615, 2404, 3005, 3130, 3230, 5321, 5947, 6010, 6260, 6460, 10217, 10642, 11419, 11894, 12020, 20434, 21284, 22838, 23788, 26605, 29735, 40868, 45676, 51085, 53210, 57095, 59470, 101099, 102170, 106420, 114190, 118940, 188113, 194123, 202198, 204340, 228380, 376226, 388246, 404396, 505495, 752452, 776492, 940565, 970615, 1010990, 1881130, 1941230, 2021980, 3197921, 3574147, 3762260, 3882460, 6395842, 7148294, 12791684, 14296588, 15989605, 17870735, 31979210, 35741470, 60760499, 63958420, 71482940, 121520998, 243041996, 303802495, 607604990, 1215209980]

約数ペア:

[(1, 1215209980), (2, 607604990), (4, 303802495), (5, 243041996), (10, 121520998), (17, 71482940), (19, 63958420), (20, 60760499), (34, 35741470), (38, 31979210), (68, 17870735), (76, 15989605), (85, 14296588), (95, 12791684), (170, 7148294), (190, 6395842), (313, 3882460), (323, 3762260), (340, 3574147), (380, 3197921), (601, 2021980), (626, 1941230), (646, 1881130), (1202, 1010990), (1252, 970615), (1292, 940565), (1565, 776492), (1615, 752452), (2404, 505495), (3005, 404396), (3130, 388246), (3230, 376226), (5321, 228380), (5947, 204340), (6010, 202198), (6260, 194123), (6460, 188113), (10217, 118940), (10642, 114190), (11419, 106420), (11894, 102170), (12020, 101099), (20434, 59470), (21284, 57095), (22838, 53210), (23788, 51085), (26605, 45676), (29735, 40868)]