198966784

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:331

約数の個数: 80

約数和(自身を含む): 424504080

約数和(自身を除く): 225537296

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 113, 128, 152, 181, 226, 256, 304, 362, 452, 512, 608, 724, 904, 1216, 1448, 1808, 2147, 2432, 2896, 3439, 3616, 4294, 4864, 5792, 6878, 7232, 8588, 9728, 11584, 13756, 14464, 17176, 20453, 23168, 27512, 28928, 34352, 40906, 46336, 55024, 57856, 68704, 81812, 92672, 110048, 137408, 163624, 220096, 274816, 327248, 388607, 440192, 549632, 654496, 777214, 880384, 1099264, 1308992, 1554428, 1760768, 2617984, 3108856, 5235968, 6217712, 10471936, 12435424, 24870848, 49741696, 99483392, 198966784]

約数ペア:

[(1, 198966784), (2, 99483392), (4, 49741696), (8, 24870848), (16, 12435424), (19, 10471936), (32, 6217712), (38, 5235968), (64, 3108856), (76, 2617984), (113, 1760768), (128, 1554428), (152, 1308992), (181, 1099264), (226, 880384), (256, 777214), (304, 654496), (362, 549632), (452, 440192), (512, 388607), (608, 327248), (724, 274816), (904, 220096), (1216, 163624), (1448, 137408), (1808, 110048), (2147, 92672), (2432, 81812), (2896, 68704), (3439, 57856), (3616, 55024), (4294, 46336), (4864, 40906), (5792, 34352), (6878, 28928), (7232, 27512), (8588, 23168), (9728, 20453), (11584, 17176), (13756, 14464)]