218691825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 431972352

約数和(自身を除く): 213280527

約数列:

[1, 3, 5, 11, 15, 17, 25, 31, 33, 51, 55, 75, 85, 93, 155, 165, 187, 255, 275, 341, 425, 465, 503, 527, 561, 775, 825, 935, 1023, 1275, 1509, 1581, 1705, 2325, 2515, 2635, 2805, 4675, 5115, 5533, 5797, 7545, 7905, 8525, 8551, 12575, 13175, 14025, 15593, 16599, 17391, 25575, 25653, 27665, 28985, 37725, 39525, 42755, 46779, 77965, 82995, 86955, 94061, 128265, 138325, 144925, 171523, 213775, 233895, 265081, 282183, 389825, 414975, 434775, 470305, 514569, 641325, 795243, 857615, 1169475, 1325405, 1410915, 2351525, 2572845, 2915891, 3976215, 4288075, 6627025, 7054575, 8747673, 12864225, 14579455, 19881075, 43738365, 72897275, 218691825]

約数ペア:

[(1, 218691825), (3, 72897275), (5, 43738365), (11, 19881075), (15, 14579455), (17, 12864225), (25, 8747673), (31, 7054575), (33, 6627025), (51, 4288075), (55, 3976215), (75, 2915891), (85, 2572845), (93, 2351525), (155, 1410915), (165, 1325405), (187, 1169475), (255, 857615), (275, 795243), (341, 641325), (425, 514569), (465, 470305), (503, 434775), (527, 414975), (561, 389825), (775, 282183), (825, 265081), (935, 233895), (1023, 213775), (1275, 171523), (1509, 144925), (1581, 138325), (1705, 128265), (2325, 94061), (2515, 86955), (2635, 82995), (2805, 77965), (4675, 46779), (5115, 42755), (5533, 39525), (5797, 37725), (7545, 28985), (7905, 27665), (8525, 25653), (8551, 25575), (12575, 17391), (13175, 16599), (14025, 15593)]