20111255890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{256423}}^1$

素因数の和:256495

約数の個数: 64

約数和(自身を含む): 42537664512

約数和(自身を除く): 22426408622

約数列:

[1, 2, 5, 10, 11, 22, 23, 31, 46, 55, 62, 110, 115, 155, 230, 253, 310, 341, 506, 682, 713, 1265, 1426, 1705, 2530, 3410, 3565, 7130, 7843, 15686, 39215, 78430, 256423, 512846, 1282115, 2564230, 2820653, 5641306, 5897729, 7949113, 11795458, 14103265, 15898226, 28206530, 29488645, 39745565, 58977290, 64875019, 79491130, 87440243, 129750038, 174880486, 182829599, 324375095, 365659198, 437201215, 648750190, 874402430, 914147995, 1828295990, 2011125589, 4022251178, 10055627945, 20111255890]

約数ペア:

[(1, 20111255890), (2, 10055627945), (5, 4022251178), (10, 2011125589), (11, 1828295990), (22, 914147995), (23, 874402430), (31, 648750190), (46, 437201215), (55, 365659198), (62, 324375095), (110, 182829599), (115, 174880486), (155, 129750038), (230, 87440243), (253, 79491130), (310, 64875019), (341, 58977290), (506, 39745565), (682, 29488645), (713, 28206530), (1265, 15898226), (1426, 14103265), (1705, 11795458), (2530, 7949113), (3410, 5897729), (3565, 5641306), (7130, 2820653), (7843, 2564230), (15686, 1282115), (39215, 512846), (78430, 256423)]