19956992

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 45867360

約数和(自身を除く): 25910368

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 209, 256, 304, 352, 373, 418, 608, 704, 746, 836, 1216, 1408, 1492, 1672, 2432, 2816, 2984, 3344, 4103, 4864, 5968, 6688, 7087, 8206, 11936, 13376, 14174, 16412, 23872, 26752, 28348, 32824, 47744, 53504, 56696, 65648, 77957, 95488, 113392, 131296, 155914, 226784, 262592, 311828, 453568, 525184, 623656, 907136, 1050368, 1247312, 1814272, 2494624, 4989248, 9978496, 19956992]

約数ペア:

[(1, 19956992), (2, 9978496), (4, 4989248), (8, 2494624), (11, 1814272), (16, 1247312), (19, 1050368), (22, 907136), (32, 623656), (38, 525184), (44, 453568), (64, 311828), (76, 262592), (88, 226784), (128, 155914), (152, 131296), (176, 113392), (209, 95488), (256, 77957), (304, 65648), (352, 56696), (373, 53504), (418, 47744), (608, 32824), (704, 28348), (746, 26752), (836, 23872), (1216, 16412), (1408, 14174), (1492, 13376), (1672, 11936), (2432, 8206), (2816, 7087), (2984, 6688), (3344, 5968), (4103, 4864)]