20320576

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1031

約数の個数: 56

約数和(自身を含む): 44988480

約数和(自身を除く): 24667904

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 983, 1088, 1216, 1292, 1966, 2584, 3932, 5168, 7864, 10336, 15728, 16711, 18677, 20672, 31456, 33422, 37354, 62912, 66844, 74708, 133688, 149416, 267376, 298832, 317509, 534752, 597664, 635018, 1069504, 1195328, 1270036, 2540072, 5080144, 10160288, 20320576]

約数ペア:

[(1, 20320576), (2, 10160288), (4, 5080144), (8, 2540072), (16, 1270036), (17, 1195328), (19, 1069504), (32, 635018), (34, 597664), (38, 534752), (64, 317509), (68, 298832), (76, 267376), (136, 149416), (152, 133688), (272, 74708), (304, 66844), (323, 62912), (544, 37354), (608, 33422), (646, 31456), (983, 20672), (1088, 18677), (1216, 16711), (1292, 15728), (1966, 10336), (2584, 7864), (3932, 5168)]