209317840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:860

約数の個数: 80

約数和(自身を含む): 503717760

約数和(自身を除く): 294399920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 61, 80, 118, 122, 236, 244, 295, 305, 472, 488, 590, 610, 727, 944, 976, 1180, 1220, 1454, 2360, 2440, 2908, 3599, 3635, 4720, 4880, 5816, 7198, 7270, 11632, 14396, 14540, 17995, 28792, 29080, 35990, 42893, 44347, 57584, 58160, 71980, 85786, 88694, 143960, 171572, 177388, 214465, 221735, 287920, 343144, 354776, 428930, 443470, 686288, 709552, 857860, 886940, 1715720, 1773880, 2616473, 3431440, 3547760, 5232946, 10465892, 13082365, 20931784, 26164730, 41863568, 52329460, 104658920, 209317840]

約数ペア:

[(1, 209317840), (2, 104658920), (4, 52329460), (5, 41863568), (8, 26164730), (10, 20931784), (16, 13082365), (20, 10465892), (40, 5232946), (59, 3547760), (61, 3431440), (80, 2616473), (118, 1773880), (122, 1715720), (236, 886940), (244, 857860), (295, 709552), (305, 686288), (472, 443470), (488, 428930), (590, 354776), (610, 343144), (727, 287920), (944, 221735), (976, 214465), (1180, 177388), (1220, 171572), (1454, 143960), (2360, 88694), (2440, 85786), (2908, 71980), (3599, 58160), (3635, 57584), (4720, 44347), (4880, 42893), (5816, 35990), (7198, 29080), (7270, 28792), (11632, 17995), (14396, 14540)]