198508900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 443971584

約数和(自身を除く): 245462684

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 73, 100, 142, 146, 284, 292, 355, 365, 383, 710, 730, 766, 1420, 1460, 1532, 1775, 1825, 1915, 3550, 3650, 3830, 5183, 7100, 7300, 7660, 9575, 10366, 19150, 20732, 25915, 27193, 27959, 38300, 51830, 54386, 55918, 103660, 108772, 111836, 129575, 135965, 139795, 259150, 271930, 279590, 518300, 543860, 559180, 679825, 698975, 1359650, 1397950, 1985089, 2719300, 2795900, 3970178, 7940356, 9925445, 19850890, 39701780, 49627225, 99254450, 198508900]

約数ペア:

[(1, 198508900), (2, 99254450), (4, 49627225), (5, 39701780), (10, 19850890), (20, 9925445), (25, 7940356), (50, 3970178), (71, 2795900), (73, 2719300), (100, 1985089), (142, 1397950), (146, 1359650), (284, 698975), (292, 679825), (355, 559180), (365, 543860), (383, 518300), (710, 279590), (730, 271930), (766, 259150), (1420, 139795), (1460, 135965), (1532, 129575), (1775, 111836), (1825, 108772), (1915, 103660), (3550, 55918), (3650, 54386), (3830, 51830), (5183, 38300), (7100, 27959), (7300, 27193), (7660, 25915), (9575, 20732), (10366, 19150)]