205876980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8731}}^1$

素因数の和:8877

約数の個数: 72

約数和(自身を含む): 629332704

約数和(自身を除く): 423455724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 8731, 11790, 17462, 23580, 26193, 34924, 43655, 52386, 78579, 87310, 104772, 130965, 157158, 174620, 261930, 314316, 392895, 523860, 785790, 1143761, 1571580, 2287522, 3431283, 4575044, 5718805, 6862566, 10293849, 11437610, 13725132, 17156415, 20587698, 22875220, 34312830, 41175396, 51469245, 68625660, 102938490, 205876980]

約数ペア:

[(1, 205876980), (2, 102938490), (3, 68625660), (4, 51469245), (5, 41175396), (6, 34312830), (9, 22875220), (10, 20587698), (12, 17156415), (15, 13725132), (18, 11437610), (20, 10293849), (30, 6862566), (36, 5718805), (45, 4575044), (60, 3431283), (90, 2287522), (131, 1571580), (180, 1143761), (262, 785790), (393, 523860), (524, 392895), (655, 314316), (786, 261930), (1179, 174620), (1310, 157158), (1572, 130965), (1965, 104772), (2358, 87310), (2620, 78579), (3930, 52386), (4716, 43655), (5895, 34924), (7860, 26193), (8731, 23580), (11790, 17462)]